What is the Doctors Age? | Doctor Who Theory

[@jameshamilton6381]

Do you realize what this implies about the ninth doctor? He spent 100 years in solitude with no mirrors. Probably dealing with his ptsd and mourning? That really fits his characterization and its a story id love to see.

[@isaacpowrie465]

Maybe nine retreated to a quiet place in the cosmos for all that time and only returned when we see him flying back to Earth.

[@parrot998]

It's a bit much to never see your own reflection for 100 years. Personally I'm more fond of the idea he is relatively freshly regenerated in Rose, but in the time between him leavjng after Rose initially turning him down and then returning to say it's also a time machine, 100 years had passed.

[@itsjudemydude]

No no, the scene with the mirror is not long after the regeneration. The hundred years comes in between the moment he leaves Rose to go home with Mickey, and popping back in a moment later to tell her the TARDIS is also a time machine. I don't know if it's canon, but there are theories that he dematerializes, spends literally a hundred years having other adventures (stuff from comics, etc.), before returning to pretty much the moment he left from. It's a silly theory but it makes the math check out.

[@SoapCanFan]

That's not what RTD has said, this is bassically just moffats head cannon. RTD said that the doctor was just checking his features out in the mirror because he was bored bassically. Infact we see the 9th doctor has been around for quite some time as he has been to the Titanic, a volcano, etc. TLDR; the 9th doctor has been around for some time before rose (this is also backed up by eccelston himself saying that the audio dramas take place before he meets rose)

[@cam1e754]

A spin off of the doctor crying on the tardis with the main event being the doctor choosing his new clothes jk

[@nightowl8477]

One thing I love is Russell's recently released alternate end to the Time War, in which 8 says *"Now, the ache in his bones feels...one thousand years old? Call it nine hundred. Sounds better."* The Doctor knocking off a hundred years here or there for his own vanity is the most in-character explanation for any contradictions in his age.

[@nightowl8477]

Bare in mind, the War Doctor wasn't conceived when Russell wrote this. Well...he was, but Steven didn't tell Russell for the sake of secrecy haha.

[@daisybtoes]

Sounds like the Doctor, all right.

[@Themadness42]

The Doctor lies, mostly about how old he is

[@vcom741]

This does work for 10th lust for life in 2008-2010 specials. The theory is that with how frustrated 10 was about regenerating due to being his shortest lived incarnation in universe. After that lived for only 5 years, 11 embraces his life and starts to, more or less, accurately track his age.

[@Zug8415]

@@vcom741 9 had the shortest life span

[@N0-1_H3r3]

It is also entirely possible that the Time War, a literal non-linear conflict full of paradoxes and impossibilities literally took years off the Doctor's life. Whole chunks of his history erased or rewritten by the war, his timeline entangled and knotted and severed and retied. That in mind, it is entirely reasonable that he doesn't know how old he is after the War... so picking an arbitrary number and going with that feels sensible.

[@ob2kenobi388]

That's my theory as well! I'm guessing he had the tardis run some calculations to figure out what his exact age is after the Time War fucked it up.

[@Lightbringer115]

The reason the 9th Doctor reacts to his body in that way isn't because it is new to him. It's because this is the first time he has actually decided to look at his new appearance, after regenerating from the war doctor to the 9th he broke every mirror in the tardis as he couldn't bare to look at himself after activating the moment.

[@asjakedoctorwho830]

I saw somewhere that the 8th Doctor lost count of his age at some point and then started counting from the beginning again. But the War Doctor losing count or deliberatly resetting his age because of the time war makes a lot of sense too. Cool :)

[@commentpal101]

Gotta say, she looks damn good for someone who is (at least) almost 4000 years old (give or take some dubiously countable waiting times). lol Good work tying their timeline together.

[@thewatcher776]

It would be nice to see the doctor and susan reunited in the 60th

[@bdogamaez]

Charles that would be nice

[@thewatcher776]

maybe they could have several stories together and then susan can return to her home planet

[@chefychefy8749]

@@thewatcher776 that would be nice but susans home planet is galifrey lol

[@thewatcher776]

@Chefychefy well they can always retcon that.

[@calvinfranklyn5499]

Agreed. I think the 1st Doctor promised Susan he'd come back one day.

[@DanDanDaaaan1]

A common theme throughout the 8th Doctor's expanded media is that he keeps losing his memory all the time. There is a book (cannot remember which one, but it's in the BBC Books 8th Doctor adventures) where he just decides to restart his age from 0.

[@wcapewell3089]

Mentally, 4 and a half billon years. Physically, probably 4 thousand and something.

[@liamroberts1458]

@@purpleturtle8841 I think that's just the chronological age. Like, for example if you were frozen - either cryogenically, or in time, at the age of say, 23, for a total of 500 years, you'd be technically 523 when it was over and done with.

[@JamesCPotter13]

@@liamroberts1458 While that would be true, the Doctor kept dying and teleporting a new version of himself over and over the entire time...though I do wonder where the skulls came from.

[@Z3R0Steam]

@@JamesCPotter13 himself, that's where the skulls came from, expended versions of himself, note that he would always drop the skull of his previous version into the water

[@chippytea77]

Interesting theories aren't they? I always work from that River Song phrase, " The Doctor lies".

[@brize3452]

So do I xD

[@xiongrey19]

I know it’s more based on opinion according to the individual theories you subscribe to but I personally count the years in the Confession Dial. The context behind it, the fact that he says he remembers it all, and how all the other characters treat his perseverance. I consider that counting towards their age. (Hard to deal with “physical age” for bodies that can regenerate anyway, so I’m time travel plus regenerations makes “physical age” less of a real unit of measure )

[@houseofwho4501]

This was absolutely incredible. For such a long time it has annoyed me the inconsistency within the Doctors age. I think your theory is very good and the video was clearly very well thought out. As for the 4.5 billion years, it comes down to a philosophical debate. If the Doctors consciousness is the same despite having a different body, does this mean he is 4.5 billion years old? Personally if my consciousness was exactly the same but after each - let’s take a random figure - 70 years, I was transferred to a new body I would probably cite my age as a continuation - but that could merely be because I hold the mind as having more worth than the body in terms of a living human. It is really a question of philosophical opinion and either answer is fine. Anyway brilliant video as I said and I’m glad you took the time to really go deep into this question 👌😊

[@houseofwho4501]

I Exist ahh it resets his memory! Well if that is the case, I would agree with you and go with your understanding. I appreciate your incredible detailing as well👌 I haven’t watched the episode in a while, when I next watch it I will have a keener eye with some of details, that will be interesting 🤔

[@houseofwho4501]

I Exist hmm, yes. It’s quite weird when you think of it like that, it’s almost like it’s a different Doctor going round but he is also exactly the same because of the copy being so exact

[@HOTD108_]

The Doctor was both mentally and physically reset with each "death", so although it took 4.5 billion years to escape the dial, the Doctor only aged a handful of days/weeks.

[@samuelbarber4154]

Imagine trying to fit 4,000,000 candles on one cake.

[@Jayden3649]

It would be easy... if the cake was the size of a planet

[@samuelbarber4154]

For me, the Time War lasted roughly 800 years. Meaning Eccleston lived for roughly 100 years. I suppose we could say that he spent 100 years in the TARDIS and didn't really get a chance to see his appearance until the events of Rose.

[@spiderpiggydog9734]

the Time War probably lasted a lot longer than 800 years, since there were so many new timelines being created.

[@ob2kenobi388]

It's always been crazy to me that the 9th doctor says he's around 900, and 11 says that he's less than 910. Even if we assume that 9 was rounding up, that's still less than half a century he spent as 10-and if he wasn't rounding, it was less than a decade. "I could do so much more" hits even harder, now.

[@cpt.dr.hawkeye1740]

Yeah it's weird because we've spent a lot more time with the 10th doctor than any other nuwho Doctor whereas in the timeline of the show, he was actually most likely one of the incarnations with the shortest lifespan (relatively speaking.) ^TDLR; wibbly wobbly timey wimey

[@ob2kenobi388]

@@cpt.dr.hawkeye1740 Not sure how that could be "too long" when it was one sentence lol

[@alexbarrett3832]

I'd largely agree with this assessment. We know pretty precisely how long the Doctor was on Trenzalore, and that gives us a very useful datapoint, because it pretty much tells us how long it takes a timelord to age from their youngest appearing incarnation, to the point at which they are old enough to die of old age. The answer is pretty much a millennium or so. We can then apply this to the two other times when we've seen the doctor regenerate because he was "wearing a bit thin" rather than due to violent injury etc. This happens three times, once when the first doctor regenerates, accounting for any age before the series. It happens to the Wardoctor, accounting for him having expereinced about a 1000 years of ageing during the time war, and then it happens to the 11th doctor after Trenzlore. He then picks up a few hundred years here and there at other points in his time line, but doesn't seem to have any big breaks in what we saw on TV. 3900 thus seems very plausible.

[@YoungCodger]

According to when Six denounces the Time Lords in Season 23, the Time Lords have had "10 million years of absolute power." Considering that the Timeless Children (ugh) puts the Time Lords' development of Time Travel after Tecteum's imperialist harvesting of regeneration, this means the "Timeless Child"/The Doctor is at least 10 million years old, with the added age of about 3,900 years. There *is* an Eighth Doctor Adventures book that says 8 forgot his age, & just started counting again. Considering it took about 450 years for 1 to get old & regenerate, we can guess that it took the same amount of time for War to die from old age, 450 years. This puts 8, with these maths, at 350 years old. This makes some sense since 8 was old, or at least older, but probably not "dying from age" old in NotD. However, how an individual regeneration ages we don't really know, so 8 lasting 600-700 years is also an equally valid probability. The outlier is 11 taking 1,193 years to regenerate from old age (907-2100), but 2 does say that Time Lords can "live forever, barring accidents" so this is most likely just how a Timelord's *last* body ages.

[@mrcritical6751]

First Doctor and War Doctor died of old age so I guess by a certain point Time Lords just automatically age when they start to appear around Bradley/hurt's age which is around the mid 70's (not counting Hartnell there as he aged drastically due to smoking) which would explain why Smith looked so old as he wouldn't automatically regenerate so he'd physically be in his 80's or 90's when he finally regenerated

[@NotTheMindProbe9]

Mr Critical Hartnell was arguably aged or weakened beyond what is natural for a time lord due to events in The Daleks’ Master Plan and the Savages, so his old age death wasn’t natural

[@Gingerprince521]

@@NotTheMindProbe9 Was just about to add this myself.

[@liamroberts1458]

@@mrcritical6751 Eight lived a long time too. Didn't he live for at least over 700 years, or thereabouts? Then there's his predecessor, Seven, who grew quite elderly, and wasn't far off from regenerating, before he landed in San Francisco, but it was never stated how long he lived in that body.

[@albineigengrau3212]

Orbis is certainly one of my favourite Eight Doctor stories, and I had always imagined that the age reset happened at that time, since the Sisterhood Of Karn had literally brought him back to life.

[@not_enough_space]

In the Big Finish audio _Frozen Time_ the Seventh Doctor is frozen in ice for a few million years. I count that toward his age, so he's pretty long-lived.

[@anthonym9977]

Did the ice stop him from aging though?

[@aaronbraithwaite3069]

The Doctor is roughly 4,000,3,900 taking into consideration the time the Doctor spent inside the confession dial

[@willowmillard]

Actually it would be 4,500,003,900 ish

[@jaziybabe]

Really enjoyed this video. A lot of pieces from the classic history I didn’t know and this is a really interesting topic!

[@TheDoctorWhoGuide]

Great job trying to sort everything out! That throw-away line from the Third Doctor is so frustrating when you're trying to get some sort of consistency throughout. I like your War Doctor theory! That might be part of my head-canon now! Haha. Plus all of 11's time-out sessions making him last maybe 300 times longer (I've just seen your Shortest & Longest Lived Doctors video and can say that it's actually 240 times longer) than the 10th Doctor is just funny to think about!

[@julieeverett7442]

yes but his comment about being thousands of years old never said earth years, 2nds count at 450 was 450 EARTH years old, 3rds count could be Gallifreyan

[@TheDoctorWhoGuide]

@@julieeverett7442 That could help explain it! It's just a really large conversion rate. 😂

[@FarazIFM]

My head cannon is he just makes up a number and sticks with it. Good video btw

[@ishaandw]

I guessed about 4000 and I was close to it. When I become the next showrunner I'm going to make the Doctor say that he/she is around 4000 years old. lol

[@onenerd9573]

Heh, looking forward to it! XD

[@TAMThomasTAM]

This is how I would do a conversation between a companion and the Doctor about it. "How old are you?" "Depends on what you consider to be a lifetime. I've have over a dozen. "Since birth?" "Define birth?" "My god you are an alien" "I lived many generations before I was restricted and started again, but there's so much I don't remember that I don't really count that. I also kind of started from zero during a not so healthy point in my life, and then dabbled with starting again when I got a second cycle of lives. What I'm saying is that I could be between two hundred years old, two thousand years old, four thousand years old, or possible more." "You can't start over with your age!" "Why not? You lot do it every generation" "Yeah, because we're different people" "So am I. Don't tell me you have the same personality as you had during your teenage years" "Oh. Oh damn." References the age inconsistencies throughout the series, including issues with the Ninth conflicting with War resolved with a reset, and dabbling with resetting with Twelfth that I wanted to add, and also lamp-shading the Timeless Child, as well as being some banter and ideas over what it means to age, could work pretty well in a relevant story.

[@Thunfischpudding]

@@TAMThomasTAM this dialogue Made me laugth hard because i can imagine this exactly happen in the series

[@vinniequick]

@@TAMThomasTAM why’d I picture Clara and 9 having this interaction

[@pinealdreams1064]

Politely, writing is not your forté@@TAMThomasTAM

[@SongoftheLute]

I'm 36 and have been for some years now.

[@WilliamWho]

Great video guys! Watched on patron earlier and was a fantastic watch Must have took you ages to put all the research together, but yeah it's basically very difficult to track due to it not following a order constantly and being all over the place. But I really like your idea of the war doctor restarting his age and going from there! That's the theory I'm gonna go with going forward

[@Therealbigcat]

Companion: doctor im in love with u Doctor: im 3000 years old Companion: 👁👄👁 the f

[@MMProductionsLtd]

I think what 2 meant by Earth years was living your life in a straight line, with no time travel. So the doctor was born 450 years ago in that current timeline, however would be older from spending years travelling through different times in the TARDIS.

[@scibanana3542]

"Rule One: The Doctor lies." - River Song

[@CulturePhilter]

Great video. Had been thinking of trying to work this out myself so you’ve saved me a job 😀

[@thewhoaddicts]

Haha! I'm glad you enjoyed it! It did some research and maths!

[@trekjudas]

OK, just before 10 dies he tells an OOD that he had stepped out on vacation for a bit. I get the impression this "bit" lasted a 100 years or so!

[@RedDragonForce2]

The Doctor is good at delaying his own fixed points in time. He even learned to manipulate his own death at Lake Silencio to keep the fixed point without actually dying.

[@alexanderr.9185]

I have another theory concerning the age confusion with the 8th and 9th doctor. So in the special "Day of the Doctor" 10th and 11th said that they kept the 8th Doctor a secret and tried to forget about him. Maybe that's another reason the 9th doctor said he was around 900 years old because he excludes the 8th regeneration. Just a thought

[@TheMultiGamerOfficial]

You mean War, not 8th

[@R_SENAL]

Well done. A solid effort. I agree that the Doctor had to have a reset around the Time War OR Gallifrian Years are about 1/3 shorter than Earth years and he's choosing what he counts on a given day by what he feels. Of course he could be counting on different time scales all the time depending on his mood and how big a white lie he can get away with. I will say I had forgotten Orbis until you mentioned it, but I think you forgot that between the novels the Burning and Escape Velocity the Doctor was again trapped on Earth for over a century. Also during the 9th Doctor Chronicles I think the 9th Doctor lives on Earth for like 20 to 30 years IIRC to be reunited with Rose in the 20s or 30s, and he never counted that! So sometimes I think he omits bits that don't mean as much to him. I remember the 7th Doctor in a book meditating and Ace asks him what's he up to and he says he's editing his memories, he's got too many and some need to go, so this adds credence perhaps to him just not remembering everything. And how many times has he met himself and forgotten it? The 3 Doctors, The 5 Doctors, The 2 Doctors, The 8 Doctors, The 4 Doctors, The Day of The Doctor, The Heart of TARDIS, The Light At The End, The Sirens of Time, The Legacy of Time, and the upcoming Out Of Time and perhaps the Time Lord Victorious. That's alot of forgetting! And THEN how many times has River wiped a Doctor's memory with a kiss? Clara Wiped her memory from him only for it to be restored later. And never forget... the Brain WORM!! Ahhhh!!! (Something Inside, inside joke ;) ) I can't speak to comics continuity, I've always treated them as little more than fan fiction because they so frequently fly in the face of continuity for no good reason. To my mind the comics HAVE to be in a parallel universe, perhaps the same one where Peter Cushing was an actual Doctor, or Rowan Atkinson. That's how much I rate the comics toward continuity cannon : no better than Curse of Fatal Death! Pffffttt

[@travisg961]

in Dr who and the Silurians episode 6, when the doctor and Liz are testing blood samples the doctor says" he may be losing confidence for the first time in his life and that is over 1000 years".

[@oliversmith7325]

Wait till he finds out the fourteenth dr is apparently a billion years old

[@michaelcowin6442]

I thought he said millions of years old, but ok.

[@procyon6370]

He was joking.

[@chrispy3369]

Either he's being hyperbolic or he's counting his timeless child years for some reason even though that person wasn't him.

[@thehybrid3947]

Im just gonna say The Doctor is over 4 Billion years old since in Heaven Sent he was conscious and aware of the constant rebirth situation making him alive again and again but with him keeping track of each day that passes despite the fact this little loop doesnt make him older im still including it

[@timgorg1919]

He couldn't remember it. He figured out everything only before the diamond pit.

[@samuelbarber4154]

Not only that, in the Five Doctors, he straight up references the War Games when the Jamie illusion shows up: "When they sent you home, the Time Lords erased your memories of me."

[@mr.scarlo2234]

Thirteenth Doctor (so far) = 47 Years Old Twelfth Doctor = 94 Years Eleventh Doctor = 1193 Years Tenth Doctor = 6 Years Ninth Doctor = 100 Years War Doctor = 800 Years Eighth Doctor = 700 Years Second Doctor = 50 Years First Doctor = 450 Years

[@fkez0510]

Interesting that isn't it? The longest running modern era Doctor on TV (Tenth) also has the shortest lifetime

[@disrespecc9678]

Tenth is 6 years?

[@chrispy3369]

Kinda weird that 9 went for a century without looking at his face

[@mr.scarlo2234]

@@chrispy3369, Nine is a debatable some believe that 9 recently regenerated compared to "Rose", but there are now many pieces of expanded media that imply he's been around a bit.

[@sunnyflowerseed96]

@@mr.scarlo2234 I’ve seen a good theory somewhere where 9th is 800 years old in “Rose” (hence the reaction to his face) and when Rose refused to go with him the first time (we see the Tardis disappear) spent 100 years travelling alone (that explained the photos and infos about him), but he came back to Rose then explaining it is also a Time Machine. There he is then 900 years old.

[@attmay82]

It could be that the pretimewar counting was in Gallifreyan years (most of the time) and post he shifted it to earth years since there was no longer a Gallifrey

[@shakes1026]

Wait, I thought they STARTED the academy at 8...not left it at 8

[@jaziybabe]

Senan Collins I was thinking that too. Considering that he when to the Medusa Cascade at 90 (is that a thing that has to do with the academy?) I’m wondering if that was at the end of his time there and maybe Matthew misspoke 🤷🏼‍♀️

[@shakes1026]

@@jaziybabe I'd say he did, still it's not a big detail

[@thewhoaddicts]

My apologies! I did mean started, not graduated!

[@samuelbarber4154]

Time travel, they graduated before they began at school.

[@Shaden0040]

At this point probably ten times the age of the universe from beginning to end.

[@samuelbarber4154]

Plus, he only had about a week's worth of memories about the Confession Dial.

[@sideswipe147]

Having not even watched this video yet, I can tell you The Doctor is really SO VERY MUCH OLDER than any of you would guess or even, if told, could believe.

[@SixInnit]

i feel like 9 spent way more time as himself, as there was a bunch of evidence of his travels in rose, i would say he was 50 years in. one year in his body feels way too short.

[@liamroberts1458]

Nah, it's very likely he lived for at least 100 years. Basically, the general consensus is he was newly regenerated in Rose. The War Doctor says he's at least 800 years old, if you listen to the conversation between him and Eleven when they're locked up in the Tower of London. Eleven says he thinks he's "1200 and something" at the time. Then, later on, towards the end of the Ninth Doctor's run, he says he's 900. Still, though, I find it sort of hilarious how ridiculously short Ten's lifespan was. I mean, he even sacrificed a regeneration just to stay as that version of himself, and he still ended up having to change not too long afterwards. Then again, it was never stated just how long he avoided Ood Sigma's message for, what with all the other adventures he had.

[@julieeverett7442]

100 years in, we get this in day, war asks 11 how old he is, the math makes him 800 when he regenerates 9th says hes 900, ergo, at least 100 years before they met. Then he goes off and comes back, how much time did he spend away?

[@Nikioko]

4:09: Odd mention? In The Mind of Evil, the Doctor says that he had been a scientist for several thousand years.

[@LiveHedgehog]

I had the same theory about the War Doctor's age. It explains why he goes from young John Hurt to old John Hurt too - he spent 800 years as that incarnation.

[@Whiteythereaper]

He lived long enough to regenerate from old age, which does add up as 11 finished around 2000 years old

[@HOTD108_]

​@@WhiteythereaperThe first Doctor died of old age at around 450, and that incarnation started from 0 (Timeless Child doesn't count), so about 400-500 years is how long it takes for a Time Lord to die naturally.

[@ulfjohnsen6203]

The inconsistancy could be a result of not always using Earth years. Gallifreian years would be a completely different span.

[@Gingerprince521]

I've noticed you've reference the 4th Dr regenerating at 813. Where did you get this from please?

[@alessandroarsuffi3062]

It's in the novel "Cold Fusion".

[@reeftheweirdboy9177]

I remember TARDISarchives had a video about how old the Doctor is. I didn't watch them for a while and then came back to their channel only to find that their videos are gone.

[@r4gusauce47]

Remember that time the 12th was stuck for 4.5 billion years

[@Liam3015]

You and Ace Creeper must be the best Doctor Who theorists on KZbin. One of you two need to be the next Showrunner.

[@chickenphat730]

Wow this was a great video! Good job man!

[@lisagattenberg1265]

The doctor has known the face of boe for a long time...

[@lewiskent550]

In the big finish omega the 5th doctor clams he's pushing 900

[@julieeverett7442]

yes, and 6th stated he was 900 so that works

[@JEEEVANJOHN]

This is some TardisArchives kind of stuff.

[@Powerman293]

I'm surprised the Doctor managed to keep count. The concept of keeping track of age for someone who can regenerate into new bodies multiple times over and deals with nonlinear time on the regular must be extremely confusing. I mean, look at how much humans can loose track on their sense of time when they're not outside for long periods.

[@michaelmcchesney6645]

After she is restored, Ruth introduces herself as the Doctor. Since Ruth is a pre-Hartnell incarnation, Hartnell could not have been the one to first choose that name.

[@julieeverett7442]

but Ruth is not pre Hartnell, she cant be

[@michaelmcchesney6645]

@@julieeverett7442 The way to square the circle is for Ruth and the destroyed Galifrey to be from a parallel universe.

[@julieeverett7442]

@@michaelmcchesney6645 Yep, I can accept that. All of the 13th doctors run is parallel universe. Considering how violent 12th regeneration was the TARDIS kicked the doctor out, and ripped a hole in space time (again!)

[@michaelmcchesney6645]

@@julieeverett7442 you know what would be really cool? If at sometime this season she runs into Rose Tyler and David Tenant's metacrisis Doctor. Meaning she realizes she is back in that parallel universe from Season 2. Of course, there would still be Captain Jack to explain. But once she gets back to her usual universe I want her to encounter River Song.

[@julieeverett7442]

@@michaelmcchesney6645 I was never really a fan of Rose, I'm very much old school, but meeting Rose and Human doctor WOULD be a good clue. And River is in a computer at the moment, unless its 13th that gets her out she SHOULD know where River is

[@julianriviera5837]

That birthday cake gonna be a fire hazard

[@joeduffy4547]

Imagine having to blow out all those candles...

[@nathanoc14]

There are definitely hints that the 9th is still relatively new in his body in Series 1 (getting used to the ears), but I wonder if he really would start his count over as the Warrior/War Doctor. Wouldn't it make more sense for his age to begin again post Time War, when he was re-established as The Doctor 9.0? Could it be possible that he spent 900 years righting wrongs and saving people and still felt the weight of the Time War like it was yesterday? Anyway, just a thought. Appreciate that you take a position with this video and just push on through. Enjoyed it!

[@RibbittIII]

The Twelfth Doctor regenerates on his 3196th birthday to me. Of course, that could raise up a few when I get to S8-12 later this year.

[@theforumspecter6680]

The Twelfth Doctor chooses not to regenerate and dies on his 3196th birthday to me. Pretending makes it hurt less.

[@kingpanguan]

I would say add a few years, heaven sent probably was multiple years per cycle

[@samuelbell2321]

Man this explains why 10 was so pissed about dying.

[@anonymystical4413]

The War Doctor having lived for so long in one incarnation actually does make sense, since he started as a middle aged John Hurt, and regenerated as an Elderly John Hurt. The 11th Doctor only aged from 20s-Matt Smith to late 30s/early 40s-Matt Smith in 300 years on Trenzalore, so the math adds up.

[@mr.scarlo2234]

The Time War was 400 years long, apparently.

[@adamstewart9052]

You should do one on the Master's age.

[@nightowl8477]

I suppose mentally, the Doctor aged in Heaven Sent since he retained his memories, but I still wouldn't count it.

[@apexa903]

nightowl he didn’t retain them he only remembers the time when he actually broke the wall

[@nightowl8477]

@@apexa903 - no, it's pretty explicit that he remembers every time, but he only begins to recall it when he finds Room 12.

[@apexa903]

nightowl he knows what happened, he understood but he didn’t remember

[@nightowl8477]

@@apexa903 - "But I can remember, Clara. You don't understand, I can remember it all. Every time. And you will still be gone. Whatever I do...you still won't be there."

[@casey3008]

Real interesting video and great research. Still unsure of his age😂 from now on though I think you’ve got the best answer bud😂

[@scottadams-main3872]

I think the forced Regeneration of the Second to the Third is partly the reason the Doctor doesn't remember what he should, after the Timeless Child revelations (the torture the child was put through and what the Division did to his mind) it adds more to why the Doctor cant remember his age.

[@danhayward3057]

One video idea is theorising how long a single day on Gallifrey is.

[@Shaden0040]

As referenced in the short before the Tennant Xmas episode with Kylie Minou, The Doctor meets an earlier version of himself. (Peter Davison) Who looks aged. compaired to the last time we saw him in the show. It is explained that each Doctor appears aged to reflect the passage of the Doctor's total Timeline. Though Davison's Doctor is younger he appears older, to the more recent incanration of the Doctor. Remember when Jodie Whittaker meets the other female version of herself the other woman looks to be fairly older than Jodie indicating it is an earlier incarnation. Perhaps from before Hartnell? This is al done because the real actors keep aging after they leave the show.

[@mastercreative6752]

Funny how the 10th doctor, despite regenerating twice, still didn't even live for 10 years 😂

[@thehybrid3947]

Looking at this I think you should include the 4.5 Billion years into the age since The Doctor did in fact experience it and kept track until he couldn't anymore after experiencing the same death over and over but we could just say he kept track but pretended to not know to not shock Clara when he brought her back.

[@sarreqteryx]

Considering that "Time Lord Society" is supposed to have been 1 billion years old by the time of the (second?) 1st Doctor (Hartnell, at any rate), adding the Timeless Child's, and Doctor Ruth's, age would make the Doctor at least that old, and who knows how old the Timeless Child was before Tecteun found her, or how long Tecteun's experiments lasted.

[@garyzimmerman62]

Thing is... this is based on what the Doctor says.... rule 1, THE DOCTOR LIES. LOL

[@dalton6173]

Honestly when dealing with a species that can regenerate and live hundreds and hundreds of years per Life it seems like they would have treated him more like a child for his first thousand years or so... Honestly in comparison to the time of the universe the doctor is just a really old turtle...

[@hordegaming4771]

When it comes to years, you have to ask the question *how old is your year?* as in the time a planet completes an orbit of its host star? Is the doctor using Earth years or Gallifreyan years? How long is a year on Gallifrey? That's what people should ask.

[@Gzeebo]

I can't see how The Doctor could possibly know their age. Mostly when the Doctor's age is mentioned in the show it's basically just meant to suggest "extremely long-lived alien".

[@g30ffm0rt0n]

Is there any reference to what "Earth year" Hartnell's Doctor was "born?"

[@beningram1811]

I'm fairly sure the Doctor ages quite a bit more than a couple of years during Jodie's tenure. I'm vaguely recalling some time trapped in prison (but that may have been a short time, for all I remember).

[@haydenammerman4642]

what about time reaver? the doctor said he was stuck for ~700 years. He remembers it and while his body does not really age, it does affect him physically. Ten didn't seam to count it based on what his supposed age in end of time, but I think it is kind of up in the air.

[@thebricknerd8599]

Wow for a timelord the 9th and 10th doctor lived like a day.

[@xerofetus]

OK. This video is old enough that it's not a spoiler. David Tennant. Woot. Only 3 eps, er, features, until the new guy

[@philosotree5876]

God knows how long a year is on Gallifrey.

[@TheProfessor230]

The power of the daleks originally mentioned the doctors age as 750 but was cut from the script

[@stephenmurphy2212]

Most likely billions because he was trapped in his confession dial for 4.5 billion years.

[@mr.scarlo2234]

Stephen Murphy, doesn’t count as it was reset many times.

[@stephenmurphy2212]

Mr. Scarlo but still the Doctor was there since the beginning of Time Lord civilisation, which is billions of years old.

[@nightowl8477]

Good point, I suppose it's debatable if Heaven Sent counts, since no time actually passed.

[@AtenSol12]

Im sure someones said it already but the first doctor being early 200s an 100 years old being considered a child essentially means he was a preteen or teen when he took the tardis and it was his rebellious teenage stage.

[@chrispy3369]

Can't be tho, cus we see him take Susan with him, so he's already old enough to be a Grandfather.

[@curvingfyre6810]

in spite of screen time, some regenerations get WAAAAAY different numbers lol, in spite of so many seasons and years on screen, and so much populatiry, tenant's doctor got less than a decade of canon years lol

[@Ryanthedoctor11]

I'm pretty sure you don't need a theory to explain why the doctor calls himself 900 in his return during new who, I haven't seen the movie in a while, but I'm pretty sure that the 8th doctor mentioned he had lost track of how old he was, and had decided to restart the counting by saying he was 3

[@kelsyerscluster7936]

You are excluding an episode, though if you include it... well it just grows to 4 billion

[@drewfriend3368]

Didn't one of the classic who doctors restart counting his age too? Started at 3 or something like that

[@richardwilliams5387]

Well I suppose until The Timeless Child is specifically retconned (which the returning Davies isn't likely to do as he's an on the record supporter of the idea) He/She is roughly a billion years old. (Alive prior to the establishment of The Timelords, and on screen referred to by Rassilon as "A Billion years of Timelord history". Like it or loathe it that's current canon.

[@Evan-ug9hr]

You said that(according to your theory about him recounting from 0) the war doctor Was in that incarnation for 800 years, however the doctor regenerates automatically when he turns 500(in one body).

[@julieeverett7442]

wrong, a time lord can live roughly 1000 years in one body

[@scibanana3542]

"The Doctor's age is a question that in itself is almost as unclear as The Doctor's name" Yeah but at least it didn't almost restart the literal time war!

[@briandaleske5139]

I really like this theory that had just been mentioned, that (The Doctor) might be 3,900years old now.

[@prof.evilpictures8696]

He joined the acadamy at 8 years old, not graduated.

[@thecartoonnetworknicktoond849]

The Doctor’s actual timelord age is 5,946 years old. Because if you add up his accurate ages through the course of his regenerations: 59 + 90 + 748 + 750 + 953 + 1,103 + 1,125 + 2,068 = 5,946 years of time travel. The Doctor’s birth name is Sekhtedottretejatardth because he is worshiped like a god/goddess and Sekhte is the Destroyer of Enemies in Egyptian mythology same as Sutekha the Destroyer. It’s the same namely likeness as Timelord Victorious because of his lack of losing a battle, But the Timelords were known as the Shoobogan from the planet Gallifrey…aka Ardethe. Because The Doctor, the Other and the Watcher are the same person because the Other was the Doctor working on Ardethe as part of the Division lead by Tecteun. but the Doctor abandoned the Division and became The Doctor because he was known as the Timeless Child during his childhood and teens. When he turned 90 yrs old he became known as the Saint Physician back on Ardethe because of his scenes of caring for his people. On earth he’s called only the Doctor because he hated being called Timeless Child because the title symbolizes that he’s abandoned by his true parents who were unknown by this point. When the Last Great Timewar happened he became known as the Hybrid because the Shoobogan believed that the Hybrid was part Dalek but turns out was all a lie by Rassilon to make the Doctor seem dangerous to the Shoobogan beacause I think it was Rassilon that killed the Doctor as the Timeless Child when she fell off that cliff by permanently pushing him off the cliff. Rassilon was the Doctor’s childhood bully while the Master was his friend up until they both left the Academy when the Master killed another Shoobogan out of pure cruelty… which is the reason he unfriended the Master. And that’s when the Master grew tiredest vengeance against the Doctor until his Missy incarnation and made amens with him at both they’re 13th incarnation… Missy dies by being shot by her past self then regenerates into the “Spy” Master and they’re back to hating each other somehow? When the 12th Doctor travels back to Ardethe to dethrone Rassilon because he blamed him for causing war with the Daleks and been a major bully most of his childhood and The Doctor becomes Lord President Doctor of Ardethe because the Doctor saved his home planet from the war by putting Ardethe in a Timelock Paradox that he used before with a an entirely different threat under help of the Oruborous which enter by using his own name as the code to unlock the paradox. The Shoobogans thanked the Doctor for using the Moment to trap Ardethe in the Tear of Isis by using his own name as a code. After 2,000 yrs the Doctor stumbled across Trenzalore… were his final battle was supposed to take place during a point of the dark times that lead him into speaking his name to free Ardethe from it’s time lock when the Silence a religious organization lead by mother Superium who believed “Silence Must Fall!!!” That means the Doctor would have no choice but to say his own name. The Results: The Doctor Dosn’t say his name, silence never falls, the Doctor survives Trenzalore regenerates into 12fth Doctor. Tile this day foward… Ardethe still remains in the time lock until… Silence Does Fall when a dangerous question is asked. Tile further noticed… the question still remains to the whole universe as DOCTOR WHO!?!?!?!?!

[@josephboyette8034]

Take a shot every time he claps

[@briandaleske5139]

At one point it did mention how much (The Doctor) aged while trapped inside a machine created by the TimeLords. But it was never mentioned what was the age of the female form of (The Doctor).

[@lucifersdevilishdetails.]

You can now add another 24 due to 2021 new year special