Why 1/1/1970 Bricks Your iPhone

This video has a correction! Turns out "Nuclear Gandhi" is a myth: kotaku.com/civilization-creat... - for all corrections on this channel, see www.tomscott.com/corrections - People keep finding bugs in iPhones, and other people keep asking me to make videos about them. So here you go! Here's a tale of binary, of the Unix epoch, and a date beyond the lifespan of the universe.
GET IN TOUCH: tomscott.com - TWITTER / tomscott - FACEBOOK / tomscott - INSTAGRAM tomscottgo
THANK YOU SO MUCH to Michael Monteith, @mike220889 on Twitter, who was able to get me a conference room to film in on a Friday afternoon at very short notice!

[@TomScottGo]

This video has a correction! Years after this was published, Civilisation creator Sid Meier made it clear that "Nuclear Gandhi" was just a myth: kotaku.com/civilization-creator-shoots-down-our-memories-of-a-nuke-1845006305 - for all corrections on this channel, see www.tomscott.com/corrections

[@matmel6159]

I am watching this 4 years after puplication and the creator has commented an hour ago. What are the ods.

[@chickenbokernot2598]

thats good to know

[@chickenbokernot2598]

judging by how this comment will blow up i have triangulated the distance between the universes edge to determine that even though i am one of the earliest replies, still, nobody will care.

[@TEGames]

:O

[@zenice1911]

yay

[@josephd6115]

“War is good” -Gandhi Probably

[@Kqinzel]

-Gandhi

[@Itsbully06]

Hi Joseph stalin

[@Real_ObamaGaming69]

“Stay strapped or get clapped.” -George Washington

[@monkearmyleader3027]

I met my clone!

[@adamchmielewski6162]

“War is good” -Ghandi Probably -JosePh D

[@untrust2033]

Don't you just hate when Gandhi gets a negative underflow and starts declaring war on everyone

[@shrekonion8307]

Ghandi: becomes less angry Also Ghandi: *visible anger*

[@aBetterMove]

You try living on spicy food and never getting a negative underflow 💩

[@muhammadmubashirullah7152]

It is a cool twist and some may call it a feature.

[@sapehc]

Happen to me E-VE-RI-TIME

[@Maki-ng4jk]

World: exists Gandhi: *_I'm abouta end this man's whole career_*

[@ItsMeFrost]

When Gandhi gets a negative underflow: “Peace was never an option”

[@ImaPizzaK]

300th liker

[@SifArtorias]

Ghandi underflow be like: Hesitation is defeat!

[@winnipeginstinct]

jee when i get a negative underflow, i just get 128 of the item in the 6th slot of my bag

[@ernestolombardo5811]

Don't strike - riot!

[@mmmm768]

But playing Untitled Goose Game is an option

[@HECKproductions]

me: hey phone its currently 1970 phone: ok me: when did i call john again? phone: about 17 trillion years after the heat death of the universe me: oh

[@martinrother]

It is actually presumably a cold death. :D

[@ohsnapson92]

@@martinrother What you're thinking is what heat death means

[@zypher2712]

Oh no anyways

[@rbarua3368]

I actually set the date back on those farming games like taps to riches so I can get lots of progress. Time travel if you will.

[@kittenmimi5326]

@@martinrother if heat dies it's coldz

[@metehan5745]

Plot twist: the universe was created in 1/1/1970

[@sbgaming7316]

Which means the moon landing was faked

[@ELLIOT1311]

The Beatles really was Jesus then.

[@fortheloveofnoise9298]

@@Saucy-ws6jc The button was on the moon.

[@Talaxianer]

no fun fact: 4 of the 6 manned moon landings occured after 1970-01-01

[@cloutcamellife7768]

Daisy Is Dead I’ve heard of that. Hurts my head to think deeply about though. Like saying the universe was created last Thursday and all the memories you have of any time before that never actually happened

[@suave319]

"Ghandi was a dick" - Tom Scott

[@BazookaTooth707]

"Good thing it was only in a video game" - Tom Scott

[@matthewmccloy4283]

+ReppeNThA707 'It's unlikely they'll ever confirm exactly what happened' - Tom Scott, 2k16.

[@Novenae_CCG]

+Newton'sFlamingLaserSword ''The expected lifespan of the universe'' -Tom Scott, 04/12/292277026596 15:30:02

[@CatnamedMittens]

+DragonOnSteroids Why did that score count down anyways?

[@DickButtox]

+DragonOnSteroids And he was a dick from then on.

[@SeverityOne]

The important thing to remember when doing time calculations in your code: don't do time calculations in your code, ever. Not even if forced at gunpoint. Use the provided libraries instead.

[@matthewschneider6725]

If, on the other hand, the "library" provided is JavaScript's Date object, your only possible course of action is to find a suitable corner to weep into.

[@danielegvi]

@@matthewschneider6725 i know it’s over 20 years too late, but I can’t wait for Temporal to be finally part of JS. Until then, Luxon or JodaTime it is.

[@VGAppSolutions]

Take time from a central source

[@toucan6109]

And then suffer by said gun

[@royalblanket]

@@toucan6109 I mean if it's pointed at your head I don't think there'll be that much suffering

[@JWhiteley]

I've known about the Gandhi bug for years and even checked it out, but it still gets me everytime that this peace-loving guy would start yeeting boom balls at people.

[@jsgv7935]

LMAOOOOO

[@Guardian_023]

Pfffffft. Is this still an issue? Like in civ 5? For example.

[@genshinmidget5043]

@@Guardian_023 No but, they made it part of the game as an actual feature, it works differently.

[@HappyBeezerStudios]

Yup, they keep it in on purpose now.

[@GaryThanosHudson]

We're gonna party like it's 1969.

[@Nope-ik8wv]

Gary Hudson 👢

[@nati7925]

Lana

[@Error-jv1kj]

- weird al

[@user-vw5yg5ok5f]

Nicee

[@ethen1772]

Back in the summer of 69

[@redmercer4158]

They caught the Nuclear Gandhi bug in playtesting but it was so funny they left it in. It literally changed the course of Civilization.

[@putinstea]

+Red Mercer Did they, or did you make that up?

[@NickiRusin]

+Red Mercer Nuclear Gandhi. I like that.

[@NickiRusin]

***** What kind of music would they play?

[@ayanhart]

+Iorveth It's been in every game since, so no. It's essentially become a running gag in the Civ series - Ghandi is super peaceful all game... until he gets nukes xD

[@ObadiahtheSlim]

+Red Mercer They even gave it a nod in Civ 5. Sure Gandhi is a peacenik, but he has a maximum nuclear weapon usage setting in his AI file. If late game Gandhi gets into a war, he will do his best to nuke you.

[@kumadohmathsforsuccessfan]

Fun fact: Discord references this on mobile when you join on ongoing call. The length of the call says 1/1/1970

[@cscscscss]

And if there are new messages but Discord hasn't loaded them yet, it says 2015

[@cii4980]

Mine does 12/31/1969

[@thomasrodgers503]

Mine does 1/26/1969

[@Daniel-ls1gm]

Remember seeing 1969 something in 'new messages since' bar before.

[@remythispartisnotimportant7276]

@@cii4980 mine too

[@maninahole]

Everybody going to ignore the attention to detail in this clip? He's sat telling us this in front of some ghastly 70's inspired wallpaper.

[@wbfaulk]

You're a little off. That wallpaper is from the '80s. The 1880s, that is. The blue one on the bottom is "Strawberry Thief" by William Morris, and there are certainly people who would take great offense at you casting it as "ghastly". (I don't immediately recognize the red/orange one on the top.)

[@hijackedmemes6988]

Why does it matter? The video is a short one, mainly about unix time anyway there’s no need for anything too dramatic and flashy.

[@PhillipAmthor]

Nobody: Ghandi: "Peace is the question and the atomic bomb is the answer"

[@LIFE-nz3ez]

Gandhi*

[@Adrian-gu7qo]

People can't be violent if they're already dead

[@bulls205]

Ironically that's kind of true. Mutually assured destruction is the reason why the United States and Soviet Union never went to war with each other.

[@CelestialXena]

And radiation is not the concern

[@dminecraft999]

@@Adrian-gu7qo media: vIdeO gAmEs cAuSe vIoLeNcE

[@AdamW-eo2yq]

Don’t you just hate it when you are in December 1969 and your iPhone is in 21 trillion

[@takumifujiwara7906]

Happens too often

[@doggobind]

Top 1 ways to cheat in an iPhone 69420! iPhone hates him!

[@lonewolf711_]

“Goddamn, not again!”

[@KingdaToro]

3:06 It was worse. Much, much worse. The normal maximum aggressiveness in the game was 10. The underflow bug put Gandhi's aggressiveness at 255 on a scale of 1 to 10. Way, way off the scale.

[@ryanandring2688]

How is that possible?

[@lukasbelan2109]

@@ryanandring2688 Because aggresivenes of 0 in binary is 0000 0000 but if the mentioned underflow happened it changed to 1111 1111 which is 255 (2↑8 - 1 [256-1 because there are 256 values but it starts at 0 and ends with 255])

[@Engieman909]

Literally 25 and a half times his maximum angry. Literally a fireball the size of an elephant burning everything around it. Pure anger

[@aliafzoon3294]

True. But probably no function was designed for the aggression over 10(or any maximum value).

[@rickyhineman4124]

@@aliafzoon3294 ... how else would angry Gandhi be possible? The programmers would have had to have assumed that the 'anger' weight couldn't possibly go beyond the max, instead of enforcing (and ensuring) it couldn't, which is exactly how the bug arises (since a logic error causes a broken domain, the range must also break)

[@Geeeoooooooo]

Instructions Unclear, thew a brick at my Iphone

[@saadmanmahfuz]

So you threw a Nokia 3310 at your iPhone?

[@b2rdistheword942]

@@saadmanmahfuz I sure did!

[@user-cr5vj3jn2r]

​

[@Morningstar_37]

@@user-cr5vj3jn2r What

[@st3am267]

Nice gd pfp

[@yagirljunee]

Clickbait, nothing about bricks

[@kerimca98]

There you go 🧱

[@turboslayer7417]

r/woooosh

[@kerimca98]

@@turboslayer7417 You're the one being woooshed

[@turboslayer7417]

@@kerimca98 Talking to Etho Baryonyx, not you

[@turboslayer7417]

Although it would have also worked on you

[@Squicx]

If I were a writer for Doctor Who, I could write an episode around this

[@april-wr1mf]

Write it anyways and present it to the creators hey maybe it might be projected into an episode you never know Crazier things have happened

[@ethan5339]

i don’t know who you are but you are so smart

[@weeklydoseofwho3108]

That would be amazing if u did that i love when theres a whovian in a regular video

[@renhey9979]

Don't give the moffer any more ideas...

[@projectretro8243]

You’re right!

[@SodaWithoutSparkles]

No one: KZbin for some reason: I think you are going to enjoy this after 5 ****ing years since this video is published

[@Ashtynn]

lmfao I didn’t even realise it was made 5 years ago

[@freddyfazbearfromfnaf3669]

Did u just censor yourself?

[@raymartcarreon6069]

To be fair i did enjoy it

[@iI_Principe]

why wouldnt you tho?

[@CarletoGamesCGYT674]

I did this and my phone turned into a brick, now i'm building iPhone houses.

[@lavender_heart3831]

same

[@andyjamisonmusic7572]

same

[@miniminminimin6007]

same

[@gdplayer1035]

same

[@juango500]

those are some expensive bricks

[@PotatoHandle]

That 64-bit time visualization at the end really shows how catastrophic this kind of stuff actually is. Awesome stuff.

[@TomScottGo]

+PotatoHandle I managed to crash After Effects while building the expressions to make those graphics work. Turns out it doesn't like 64-bit integers either...!

[@TheFerdi265]

+Tom Scott Also, wouldn't the sheer size size of the numbers possible to store in 64 bit unix time make it possible to use a signed 64 bit int and STILL store the time until the expected end of the universe? That would mean we could store all possible times from the beginning to the end without buggy overflow semantics, which is what we want, right?

[@EwanMarshall]

+TheFerdi265 Yes it would, but back in 1970 when the epoch was chosen, it was defined as a 32bit unsigned integer of number of seconds since the epoch. Infact, if we weren't moving it to 64 bits we would overflow in 2038. Also there are still overflow and underflow mechanics on signed variables, and they act even more weird due to how 2s compliment works.

[@TheFerdi265]

Yes, but with 64 bit signed we would not come even close to the overflow areas under normal usage. And IMO if we already HAVE to make a switch, then why not do it fully. Like change the EPOCH to be beginning of time in the universe and use unsigned 64 bit

[@joopie99aa]

+TheFerdi265 Setting the epoch to the beginning of time isn't really practical, because we are nowhere near knowing how old the universe is down to the second. But yes, using a 64 bit signed int with a 1970/1/1 00:00 epoch would work very well. In fact, this is the standard way of representing Unix time ;)

[@anonymous-ds3mc]

"Gandhi started declaring war on everyone" -Tom Scott 2016.

[@JohnDoe-dj3xh]

to be honest, I hadn't ever considered interger underflow in my code. I never write anything particularly complex, but this is a nice reminder that things are not always simple. I have had to consider interger overflow before, but mostly because I accidentally wrote some code that had an overflow that would crash the software at random points in its run. spent weeks trying to figure it out before my dad of all people said "that calculation is going to return a number higher than 32 bit"

[@radiod698]

Very late but how did you're dad know that?

[@sey_81]

I´m also curious

[@celestialtree8602]

@@radiod698 Maybe programming background, or maybe they remembered that the 32 bit limit was like 2.1 billion something from something their son/daughter/other said and just thought "wait isn't that higher than the limit?"

[@DylanPickleGaming]

my moms old iphone 4 swears it is january 1968 every time you turn it off

[@notthespaghetti1997]

So it says "Its f**king january 1968 you f**king pig" when you turn it on how the 60s where

[@questreality8262]

Chloe Jude 😂

[@deebo1186]

Chloe Jude 😂

[@emma818]

Chloe Jude hahahah

[@potmki6601]

"Old iPhone 4" sounds like a nonsense to me. In my mind they just recently became a thing. Am I old Basically, iPhone was invented like 10 years ago so

[@TheF0xskibidbopmmdada]

*Why is this video from 1970 getting recommended to me in 2019* Edit: after clicking on this video 71 times to read my notifications I think I might watch the video

[@bringittothetop3790]

yow pip

[@ghog4792]

U dumb

[@yuvt9104]

*fr*

[@ghog4792]

VenomAliive oh no 🤦‍♂️. I was joking so you get wooooshed now

[@user_xman00]

Omg the video is from 2016!!!1 😂😂😂😂😂😂😂😂😂😂😂😂🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🤣😂🤣🤣🤣😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🤣🤣🤣🤣🤣🤣🤣🤣🤣😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

[@94djcab]

"And if you understand those terms, you don't need this video" Well Imma still buckle up

[@toastthatsbread]

Apple really doesn’t want us to have our phones on 19 funny number

[@jasonvera3043]

Thank you Michael Scott!

[@ananttiwari1337]

19? or did you mean 69lmao

[@ratking9577]

@@ananttiwari1337 1969

[@xisumavoid]

Now i know why Gandhi was such a war monger lol Fascinating bug, great video!

[@gameplaystutorialminecraft6230]

hey xiissumaaa big fan bud.. im also in ure free build server

[@gameplaystutorialminecraft6230]

+CK Wunch make it cracked pls.. I joined xisum's server using a friends prem

[@ckwunch8028]

Gameplays,Tutorial,MINECRAFT FUN I am against cracked servers. If we never pay for anything no one will write cool stuff. I am sorry but i cant support cracked servers.

[@RingxWorld]

+xisumavoid xisuma whens the next hermitcraft episode

[@carrotslice1763]

+xisumavoid wow you're everywhere

[@sspoon]

I did it and someone threw a brick at my phone.

[@jayle5404]

No 20/10

[@sparraw5603]

Kewl

[@katanaj3005]

Oh my

[@julez5602]

SpoonOfPower 69/69

[@paxmeier915]

SpoonOfPower

[@BP-bq9uz]

Going back to this video ~5 years later, I get to smile to myself that I understood the words at the beginning of the video. It isn’t much, but it’s definitely a reminder that I’ve made progress in understanding something I’m as passionate as I am about. Thanks for that. :)

[@crispyduck4624]

Interesting - I’m an Apple Technician, and we just switched to a new repair system, but we’re Kinda in a limbo in between both old and new because the new one is a big change. In the new one when we go to check somethings coverage sometimes it says “31/12/1969”. I don’t think there is any correlation but it’s interesting :) (We can still find coverage it’s just an extra step)

[@jgharston]

If you set the clock to 00:00:00 01/01/1970, but then declare your timezone to be Alaska, then yes the human display will state that it's 1969 'cos at midnight 01/01/1970 it was still 1969 in Alaska.

[@arlingtonhynes]

There’s a correlation. Can’t tell you the details without seeing their code, but I can virtually guarantee the time_t epoch is somewhere in the background of how that came to pass.

[@laultimarebanada]

Haha nice

[@geomijul]

Man, this is like a horror story.

[@haywiregaming332]

ikr

[@xdxd-zx5fj]

+Haywire Gaming trud😂

[@talhatariqyuluqatdis]

I really want to click that link, but I don't trust you ;((((((((((((((((((((((((((

[@carlalarkin7308]

bruv it dose I agree

[@okie9025]

What does a bricked phone and a normal iPhone have in common? They are both useless and a waste of money

[@jackdog06]

"well this would be called an 'integer underflow'" Me: he's gonna talk about the Ghandi thing

[@zakiaw4963]

Ya what is that Ghandi thing?everyone is commenting about it and I'm here like a videogame npc

[@prestonang8216]

Zaki Aw NPC energy

[@gingergamergirl98]

Zaki Aw Watch from 2:51 for the Gandhi bit

[@devilsyndicatexo]

Ummm little respect it’s Gandhi

[@anotherwordly]

@@devilsyndicatexo what

[@reoffending]

Imagine going into a time machine excited to meet every famous person from history just to find out that it's computer unit has this exact same bug and you end up at the location of time during the heat death of the universe.

[@velocitygames6914]

I would definitely have you as my teacher you explain everything so clearly

[@alex_jpeg]

I still don’t understand the awkward and uncomfortable camera scene change

[@diarykeeper]

To recatch your attention :p

[@Sammyv12345]

Alex Lane it feels as if i am a stalker who is crouched behind a corner peering up and staring at him while trying not to be noticed

[@alechakimian9036]

4:18

[@magaplex6476]

I read this as it happened

[@lilfr4nkie]

Sammyv12345 I think that’s exactly what Tom was going for.

[@anb1142]

Plot Twist: We're in the matrix and it was created in 1/1/1970

[@lavender_heart3831]

People born in 12/31/1969:

[@dew62169]

I guess my dad never existed who woulda knew

[@InfamousMax]

@@lavender_heart3831 Well, they and everyone else just need to belive that they are born before that date, which is not very hard to manage in the matrix. There was a film including that topic: "Open Your Eyes", might worth watching it.

[@vibovitold]

@Vikarn RAJORA [11M2] how could they know if their pre-1970 memories were really accumulated over the years rather than just a ready-made preset?

[@vulpine6692]

It was created a day after, so it cant register before

[@sourcehub8323]

I know what an 'integer underflow caused by the Unix epoch' means but I love watching Tom talk about tech

[@jongyuemei]

happened to me in discord when I'm glitched in a call it says 1/1/1970

[@thenickstrikebetter]

12/31/1969 when it breaks for me

[@epicmehd1]

Yes

[@epicmehd1]

@@thenickstrikebetter after a few hours ...U get 1/1/1970

[@onaona.]

Happened to me to,a few times now. And it's always January 1970...

[@thenickstrikebetter]

@@onaona. for me its always been 12/31/1969 except once where it was 1/1/1970

[@Stasenko58]

Am I only one who "doesn't need this video" yet still watches?

[@RishabhDaga14]

+Stasenko58 No.

[@ratdude747]

+Stasenko58 Guilty!

[@liteyagami6364]

+Stasenko58 Absolutely not. Shut up.

[@ratdude747]

+Stasenko58 Same here...

[@Stasenko58]

Larry Bolan Oh, sorry, I am not fluent in english and often don't get what people say

[@widsard5613]

*Who was also here just to learn how to birck everyones iPhone but instead learned about how to get Ghandi to delcare war on everyone*

[@superpancakes9512]

Hah civilization joke i love it.

[@roroo]

birck

[@somebodylikesbacon1960]

Me.

[@peanutbutter7639]

Gandhi****

[@jacobw1780]

Stop

[@Anythingoes88]

1/1/1980 is also another common start date; When on Windows 3.1 in the year 2000, it went back to 1980 creating havoc with when I last saved my files!

[@lou_cone]

The fact youtube didn't set the date this video was uploaded to 1/1/1970 makes me sad

[@willpembroke5732]

Is it just me who is really tempted to set the date to 1/1/1970 now

[@navarruh]

Armin Arlert I really want to do it too😐

[@immortalgamer1440]

it will brick your iphone until. u unplug the battery inside

[@TheTriforceCrusader]

ImmortalGamer you are a horrible person Has anyone ever told you that?!

[@immortalgamer1440]

wtf?

[@jackiebedoya1001]

Me but I don't wanna risk it I just got my iPhone 7 , 3 weeks ago and I don't have apple care

[@readman010]

to the apple store to brick the display model!

[@redwolfe3343]

i think you would get in to trouble

[@zapwak9935]

No i think they would probably be perfectly fine with it

[@nitchbigga97]

Destruction of property.

[@ApocalypselabsNet]

Their bug, their problem.

[@readman010]

Have you seen the guys that work in the apple stores? They couldn't catch a cold, seen more intelligence in my socks after a long day at work..

[@cryomancer4878]

"Timezones and irritating human things like that" Timezones are truly irritating -from a person in a long distance relationship

[@pederslothzuricho7685]

even more so in Denmark, because apparantly we don't legally use utc.

[@aromanticfranziskavonkarma]

Or anyone with online friends in another timezone

[@Magda_7396]

Oh yes, I hate this 😭 Even now, it's night for me but for him it's the middle of the day :(

[@yankymate2314]

@@aromanticfranziskavonkarma ikr?

[@MrMan-sy4ev]

The thing that always gets me about coding is how the most minute detail perpetuates towards something catastrophic. Fascinating video. Thank you!

[@kenshin6553]

The Doctor: Sets the Tardis to January 1, 1970 Tardis, running on Linux: End of the universe? You got it, boss

[@abyssstrider2547]

Not Linux, Unix

[@mackharmon5818]

@@abyssstrider2547 Unix, Linux, macOS, and others all use the same, "Epoch" based time calculations and clock setup.

[@me-dc8pj]

All of the 60s episodes and the 7th doctor episodes that take place in 1963: *Gone, reduced to atoms*

[@BarginsGalore]

@@me-dc8pj well considering the doctors been to 1969 like 20 times that should cause some problems

[@Fact_core]

Doctor who?

[@piranha031091]

That's an epoch fail!

[@BazookaTooth707]

Win of the day

[@ryanm7263]

+piranha031091 You just won the internet.

[@InOtherNews1]

+Paulo Bardes There's an XKCD for everything....

[@stationshelter]

+InOtherNews1 If there is an XKCD for everything, and more XKCDs are continuing to be created, are more things being caused to exist because of XKCD?

[@z-beeblebrox]

+sethraptor No, it's a probabilistic observation wherein if you manage to think of a thing *and* it occurs to you to check if there's an XKCD for that thing, there will be an XKCD for it. But if you don't, then both the thing and the XKCD related to it will only exist as a wave function.

[@m1co294]

"Ghandi started declaring war on everyone" is a sentence that came out of a man's mouth

[@JMUDoc]

There was an underflow glitch in the original _Sonic the Hedgehog_ on the Mega Drive. In the Final Zone, the boss took eight hits to kill, but it was possible to hit him twice on the last cycle - doing so would underflow the counter to -1... aka 255. Good luck getting another 255 hits before the time ran out!

[@TheRealGuywithoutaMustache]

"If you understand those terms, then you don't need this video." My ability to speak doesn't make me intelligent.

[@mooserat4771]

And another video I encounter you in

[@fork638]

It seems weve met in the same battle field again

[@o_o3408]

bruh. how are u here too

[@mitsuvolts03]

Just Some Guy without a mind

[@buddy1562]

How the hell are you on litteraly every video i watch

[@josephhawksworth1501]

You could make a video on why doors open and I'd still watch it

[@nebulium6641]

I came back here a few years later and i finally understand the "interger underflow in the unix epoch" :D

[@imyourdaddy8243]

This guy could probably explain rocket science to me in an understanding way

[@HappyBeezerStudios]

Google tells me that one of my devices has been registered on 31. dec 1969... Does it mean I got a phone from the past or the future?

[@synthaly4663]

waffeltek r/wooosh

[@shane9239]

@waffeltek r/wooosh

[@Aqib2]

HappyBeezerStudios - by Lord_Mogul You probably brought your phone from a time traveller.

[@BayOfWulf]

You got a Jesus phone. It was made on 1969 and that’s godly

[@750tiprogamer]

Whenever my phone gets out of range for phone signal, it gets really, really confused. Like saying the notifications are 42years old, the date is years ago, and stuff.

[@KerbalRocketry]

One slight correction; The Civ 1 bug. The AI was coded using several traits each on a scale of 1 to 10, in the case their aggression, as an 8bit integer. Ghandi starts the game with a value of 1, represented as simply 00000001 in 8bit. However later when the tech diplomacy becomes availible, this tech is interesting as it drops all the AI's aggresion by 2, resulting in Ghandi having an aggresion of 11111111, or 255 out of the maximum of 10. Ghandi doesn't go from the lowest to the max value. He goes from the lowest value to over 25 times the max value.

[@dogzday]

+Kerbal Rocketry what are you correcting? what you said and what he said make perfect sense. the highest possible is 11111111 base 2. the programmers put a check to cap it at 10 base 10 (or 00001010 base 2), but they didn't put a check to prevent it from underflowing for ghandi. what you said and what he said are true, looks like you're just adding on.

[@hikari_no_yume]

+Kerbal Rocketry Er, yes, but Tom is talking about the maximum value of an [8-bit] integer.

[@Nighthunter006]

+Kerbal Rocketry I think the tech was democracy, not diplomacy.

[@gorgolyt]

+Kerbal Rocketry You corrected nothing.

[@marco1824]

+Ryan Denziloe "You corrected nothing, Jon Snow!"

[@ClipHero11]

And here I am now, 7 years later and about to finish my Computer Science Major, with Tom Scott being the one who originally taught me what an Integer underflow is when I was still in school.

[@adamsnow2620]

Don't usually watch this type of video but this lad is well easy to watch, short and sweet, with quick clear info 👍

[@TheMertkarakus]

That number check is probably the indicator "Last time backed up xxx hours/days ago" under iCloud.

[@MrLuc420]

That actually seems like a pretty good theory.

[@Mernom]

But that would imply it could crash if the date was set close to the zero time, not exactly at it no?

[@qwest500]

good point

[@davidgovoni6370]

I believe Tom did mention that in the video, that if it's close to zero and not exactly, the check can still wrap.

[@iLikeKittens]

So now we're in the year 46 U.E. (Unix Era)?

[@theLuigiFan0007Productions]

カラス Correct! :D

[@iabervon]

+カラス Actually we're in the fourteen hundreds, 1455 to be particular. It's been 1455 megaseconds since the epoch. Years are really messy.

[@theLuigiFan0007Productions]

iabervon I usually don't go by seconds for real life timekeeping.... but for software purposes I will not argue about it's superiority.

[@mugoloo]

+iabervon I don't know which one I like better dammit.

[@ckwunch8028]

+カラス Set a linux machine to 1/1/1970 and you get a similar problem, except linux is smart, when it gets the error it tries to kill all processes and find the right time/date. Try it yourself set the bios clock to 30/12/1969:0.50 (gives your box 10 mins to boot) will it crash... No it will tell you the time and date are wrong and give you a double beep :D (server admins will know what i mean about the double beep code)

[@AntonyWalters]

That wallpaper has bricked my eyes

[@WornWoody]

Although I already knew what UNIX Epoch was, I kept watching the video anyway because you do such a good job explaining it.

[@Luis29292]

Why would someone change their date to 1970? They think they're going to time travel or what?

[@Zed-Corps]

changing the phone date back is a way to cheat in time based games

[@emirates4607]

Maybe 2-3 days not 46 years

[@davo9407]

+zedrick jaramillo or to download rom games

[@user-vo7kf7sv4z]

+Emiratess cheated a little bit too much maybe :P

[@freejdg]

Luis Antonio Domínguez Ávila why not

[@CaptMono]

I wonder how many people here who knew the terms listed in the reason _actually_ left instead of watching the video.

[@T0MMYNAT0R]

I think it was interesting to watch. It's always cool to hear people explain certain things.

[@corryunedited8154]

Probably fewer than 00000111. (Just a guess.)

[@VoltSnake]

@@corryunedited8154 7 people, I mean that's very precise

[@realcartoongirl]

@@corryunedited8154 1 2 4

[@toptiktoksdaily]

So like did everybody just get this recommended

[@bkillerj8404]

Yea

[@nicholas8523]

Such an original comment

[@loveless2558]

Maybe

[@diggy8191]

0:13 me *understands* also me : " i still very much need"

[@the21podcast]

Not relatable

[@AlxndrJG]

Instructions unclear.. Now my iPhone is backed with nuclear weapons..

[@edwin7788]

i like when u just need switch U and N from unclear to nuclear

[@stiky5972]

*Kim Jong Un wants to know your location*

[@ClipHub777]

"our words are backed by nuclear weapons" -Ghandi 1945

[@aeghohloechu5022]

@@ClipHub777 1969*

[@elliottthompson2745]

iPhone packed with bricks

[@zym5435]

this person: setting your date to this will render your phone inoperable. it will break your phone and make it stop working. me, a person who uses my phone a lot and wouldn’t be able to afford a replacement/repair, before even clicking on the video: i wanna try it

[@putinsthirdtoe8800]

Me

[@under5947]

btw it doesn't work anymore.

[@Network126]

Go to an Apple store and try it on one of their display units..

[@inirotimi]

Network126 you’re the saviour we need but dont deserve.

[@TheShattenjager]

Network126 didn’t you mean to say “try it on all of their display units?” FTFY

[@thegraphicgoose]

I remember in school, setting the time and date about half an hour before the maximum date time, then wait for the computer to crash when one of your mates was using it 😂 only when it wasn't super important stuff that needed saving though, just a bit of fun 😀

[@FewVidsJustComments]

What is the maximum you can set it to?

[@Candme38]

"And ghandi started to declare war on everyone" had me laughing so hard

[@JakstarYT]

Steam: (some game) last played 01.01.1970 me: oh ok

[@HiJack3r]

Wait a second i remember that before the update with the huge UI overhaul in the Library section games i hadnt played had a last played date that was absurdly old, but i dont remember if it was exactly 1.1.1970., is this why?

[@TheMoonRover]

Yes, the date probably wasn't assigned properly for some reason and the value defaulted to 0, which would show 1/1/1970.

[@doggobind]

*_played 569259274917417401758202749175927508205149259275027525927961497580275916 years ago_*

[@lolgal1996]

they fixed it cause you can only go back to december 31st, 2000 now

[@KM-vy6ic]

Yeah, they changed it a while boi

[@cyberwirehacking5143]

+kyle te L

[@simonro9168]

I wonder what happens on Macs (UNIX-based 64bit machines) or on 32-bit iPhones

[@ApocalypselabsNet]

IIRC, 32-bit devices default to 1970 when the battery dies, so nothing. At least my 2nd gen iPod Touch did.

[@pr9101]

so thats what was happening to my mums ipod. I remember finding it on that quite often.

[@mikedett91]

Liked specifically for that intro about the Linux time. *Chef's kiss* loved the delivery

[@McKlunkers]

4 years on and I still keep trying to scrape that little black dot on the wall behind you off my screen...

[@imarcus1973]

When forced to give my date of birth on websites I always use 01-01-1970 :)

[@antipancakes4747]

Marcus F I use 1890

[@Rainbow__cookie]

@@antipancakes4747 impossible

[@antipancakes4747]

The amd tech bear a lot of websites go that far back

[@dreadfulbadger]

I use a completely random date every single time.

[@zacc.1k395]

unemployed same but it always fucks me over when I try to reset my password

[@abbiegordon670]

I feel like I accidentally walked into the extended mathematics degree class mid-lecture and somehow got mentally lost and now I cant remember what I was gonna do

[@tobsterminty1427]

Hahahaaahah. Ikr😂

[@spartyon75playsmaddenmobil12]

me to

[@EmdrGreg]

...but ironcally you CAN remember December 31, 1969. Magic.

[@Loggus66]

Applefags, everybody.

[@gamesniff5958]

I feel like I walked to the 90s

[@odinsudons]

Your videos never cease to entertain me.

[@ataphelicopter5734]

It’s been 4 years. This still ticks me off as of today

[@Huntracony]

I did understand those words, but watched the video anyway.

[@JustinKoenigSilica]

+Huntracony give up now. this wasn't even this difficult to understand, even as someone like me, who doesn't know jack about programming

[@MrTellitToYa]

+Justin Koenig He very obviously already watched the video.

[@JustinKoenigSilica]

MrTellitToYa "give up now", as in, don't watch anymore if you already don't understand

[@doomslaps4583]

+Huntracony You rebel...

[@Huntracony]

Justin Koenig But, I do understand. Did you read my comment wrong?

[@YasminMuryadi]

I did this once completely by accident on my ipad. Absolutely panicked and ran around screeching to the nearest poor saps that were my friends.

[@CosminNeagu]

Some of the pictures in my phone have the date set to 1/1/70 for some reason. I think the metadata was corrupted in some way.

[@zoewells3160]

I understood the terms but kept watching because your style is so engaging

[@kyrridas1573]

"using 4 binary digits, you cant count higher than 15" okay, im following you... "with 64 binary digits, you get a number 20 times the length of the universe." ...

[@Maki-ng4jk]

Per digit, the total multiplies by 2. 2 raised to the power of 4 equals 16, or 0-15 (computers count from zero). 2 raised to the power of 64 = that absurd number.

[@SetyaPriatna]

do not underestimate the power of "to the power of".

[@xEulxgyx]

Ok what

[@fresch4395]

@@SetyaPriatna 2 to the power of 2 is 2^2 or 2² So 64 bit can display a number 64²

[@grosdoorne]

@@fresch4395 2^64, not 64²

[@MauriceGuibot]

"20 times longer than the expected lifespan of the universe" oof

[@thatkindcoder7510]

Queen Elizabeth: "Pathetic"

[@MauriceGuibot]

@@thatkindcoder7510 xD

[@saschahahn8994]

Its actually not. Life eypecrancy is 10^33 but the yeaf in the vid is 2^39

[@prezentoappr1171]

@@saschahahn8994 melody sheep enters the chat

[@morrisputman8592]

This is interesting! I had this bug today on discord. It said that the call was running since 1970. Know I know why

[@reappermen]

That's not a bug in discord, it is intentionaly put there as a reference/joke

[@morrisputman8592]

@@reappermen how it that a joke?

[@isaacschultz7022]

Tom Scott and Sam o nella are the only education I need.

[@FaumauNZ]

if apple ever confirmed the bug they would explain it in vague hipster terms and call it something catchy like iFuckedup

[@dodderss]

Ha

[@jadethom7908]

It's for you; It's ICE!

[@hadierturk7999]

:D That’s hilarious

[@christopherg2347]

Or maybe a OoopSi?

[@kierdotk]

Oof

[@tonchito1449]

Why do they even let us set the date back?

[@user-vo7kf7sv4z]

for if we timetravel

[@key_of_destiny4712]

Your not supposed to, but people do it to abuse time-based games like Adventure Capitalist using an airplane mode glitch method to gain resources.

[@tizoro3]

This doesn't work on adventure capitalist... It's a cloud based game so time is based of the cloud. Not your phone.

[@key_of_destiny4712]

tizoro3 I used to do it, so I know it worked at one point. My phone didn't brick, but I just deleted the game cause it was just stupid.

[@powerplayer75]

In case you want to manually set a date if for some reason your device never connects to the Internet ever or you're just weird.

[@Pattoe]

This explains why, if you're a broadband tech support agent in the UK, and there's a major service outage... A lot of the time Openreach will say the service outage has been going since the 1/1/1970. It must struggle to find the real start date and just give the earliest possible date it can.

[@joshuacarr8677]

Definitely a new sub here. I love this

[@62calum]

that wallpaper combo.

[@stval]

"Gandhi was a dick" - British person

[@bigturnip]

"Gandhi was worse than a dick" - Anybody who knows history

[@chrisrichards942]

"I'm too drunk to taste this chicken"- Colonel Sanders

[@toplel8211]

+Saint Val It's a reference to the Civilization series bro. Back in the original game, as explained, he was supposed to be a pacifist but as time went by he turned into a monster because of a coding bug. Homage is paid to the bug in the modern civ games by making Gandhi more likely to use nukes than any other civ.

[@prittyandpink32]

"Nah" - Rosa Parks

[@Micavich]

"Shhh" -Ann Frank

[@silverlake631bee4]

This was happening in the mini iPad we got in 2011. I haven’t used it regularly in a long time, but when I turn it on, most times the date says December 31, 1969. Then it sometimes switched to the actual date. I haven’t checked it in a while, and I know it would also display the 1/1/1970 date too

[@lasivianleandros3558]

"It is almost certainly an integer underflow caused by the Unix epoch. And if you understand those terms, you don't need this video" - Actually, I do understand those terms, but your videos are still worth watching when I already know :)

[@pixoontube2912]

Comments under this video: 1% Stuff that actually makes sense. 9% Stuff loosely relating somehow to 01/01/1970 90% Ghandi declaring war

[@queefedworm]

What I found weird is how I found no one who encountered my problem, I once bricked my iphone because I was date changing to get gold on a mobile app with a client side clock and I somehow unbricked it by updating the ios

[@jaykrishnak3268]

Gandhi*

[@petermarsella6537]

The comments below and above this were specifically about Gandhi declaring war

[@yuyukosfaithfulservant]

ikr

[@47FLA]

And also stuff about bricks

[@jesutherland]

Great titles on this video (the numbers on screen, binary, epoc and int). Those must have been a pain to make but totally worth it. Nice job!

[@TomScottGo]

+James Sutherland I actually managed to crash After Effects while writing the expressions to generate them. Turns out AE doesn't deal well with 64-bit overflows either...!

[@DavidChipman]

+Tom Scott Did you report the bug?

[@MrDelador]

+Tom Scott 64 likes on this comment......

[@RuffieyBoo]

+MrDelador I'm the 46th. . .

[@OliverObz]

+Ruffiey Boo I'm 47th...

[@Charlief23]

I’m sure someone lost their iPhone because they wanted the date to say 1969.

[@Sam-fq3bt]

Never thought an old Tom Scott video would help me complete an assignment for college, yet here I am.