2023 is the 13th of these which is so many

[@TimLesher]

"Then it slouches into irrationality when no one is looking." Me too, pi. Me too.

[@GytisValatka]

Good for you. For many people it's the opposite

[@PiTheDecimal]

Yes

[@zanedobler]

This channel is the reason I got into mathematics 10 years ago as a student, which ultimately led me to pursue my current career pathway as one of the “sciences”. Vi, you’ve helped shape the person I became in more ways than you’ll ever know, and I just want to thank you for all you do.

[@juliezwick8930]

Seconded

[@VAdaPEGA]

Shaped the person you've become? is it triangle shaped perchance?

[@louisbourgault]

I've only just stopped making hexaflexagons. Finally she's uploaded again!

[@blubblubwhat]

Ah so cute :)

[@ArtThingies]

Is that shape a triangle?

[@mara7033]

I feel like this was all a very clever extended metaphor that went way over my head.

[@spookyfbi8]

Same, definitely feeling like I’m missing something here

[@non-pe8xn]

Vi is making a case that 12 videos is enough in this series and that they are planning to end the pi day series, which is sad because vihart content is always super enjoyable but also understandable because they have been doing this for so long now!

[@yoavboaz1078]

​@@non-pe8xn but she made a 13th video...

[@ieatnoodls]

For me it is theory vs. practicality, and how maths can go on crazy theories and tangents when sometimes all you need is 12 digits of pie

[@MishTheMash]

We all have listened to Vi's lecture thinking 'this is non-sense' but unfortunately We are actually missing digits of pi :O That's right those "...." at the end of our expressions of pi are the real missing digits of pi.

[@snarglepop]

she may say pi has 12 digits, but this video implies the existence of a mysterious 13th digit

[@sdspivey]

0

[@janaki3829]

7

[@alankott3129]

It's a Baker's digit!

[@zyansheep]

For me though, the video came out on March 13th, not March 14th!

[@asheep7797]

@@sdspivey then 0

[@johnsubra7239]

I shouldn’t have watched this video before dinner. Now I have a craving for tiny triangles and fruit filled circley crusts.

[@LilythathappenstobeinaValley]

sounds like pizza

[@jonaseggen2230]

I bet the universe is cupcake shaped

[@rebekahcreates]

Yass

[@stevenclarke2655]

Now I'm worried that some pizza chain will start selling Fruit Filled Circley Crusts and Vi will receive no royalties. Quick, Vi, file a trademark application before Domino's sees this video!

[@heyoyo10gaming4]

@@LilythathappenstobeinaValley Please, _fruit-filled_ circley crusts. Who would _ever_ put something like a pineapple on pizza?

[@m-akuttner4300]

My 8-year old son had a blast playing with hexaflexagons when that video first came out. Fast forward ten years and he's in his first year of university toward a physics degree. Thanks for taking us along with you on the ride!

[@thejagtimes]

Insanely massive W son W life W you

[@Zosso-1618]

this has the same energy as when my friend and I got into an argument about whether a hyperbola is more circle than a circle or not

[@Jellyjam14blas]

Is it? I don't think so. Because like, even if it was 100% circle, it would only be the same as the circle (Which I assume to be 100% circle), and not more.

[@gaymerjerry]

I mean Parabolas Circles Ellipses and Hyperbolas are special because they are conics aka cross sections of cones and share a lot of properties because of that

[@christopherellis2663]

So, where is the equal distance from the centre? Clever, but not exactly smart.

[@justarandomdood]

Hyperbola eccentricity = c/a > 1 (c always greater than a for hyperbola) Circle eccentricity = 0 Parabola eccentricity = 1 0 < Ellipse eccentricity = c/a < 1 (c is always less than a for ellipse) Therefore, hyperbolas are the furthest you can be from being a circle while still being a conic section

[@sebastianw1980]

You are all fools. The circle, in its perfect homogeneity, contains only itself. It is a failure of a shape, unable to comprehend or even imply anything else. This is why Ptolemy and Copernicus were fools. Uniform circular motion? I say: bah, humbug. The ellipse has two foci to the circle's pathetic one, meaning the ellipse implies two circles. This is better, but still ineffective to truly begin to hear the music of the celestial spheres. Next, take the parabola. It is similar to the ellipse in that it has two foci, but one of them lies at an infinite distance. This implies two circles of infinite radius, greater than any circles inscribed in merely finite place. This is reminiscent of the sphere of the fixed stars, long held as the finest example of "circular" motion like the idiotic Aristotle. If the parabola is more symbolic of the sphere of the fixed stars, then it must comprehend more of what we call circularity than the circle. Finally, ee can move onto the hyperbola. What is farther than infinity? For the second focus of the hyperbola rests at both infinity and negative infinity. This must be our truest understanding of circularity, for not only do the circles comprehend the motion of the fixed stars, but the selfsame focus represents the shape of the earth, which is a perfect reflection of the sphere of the fixed stars, ordered by the demiurge to give us hints as to the true nature of the universe. To argue this point is to reject the will of the demiurge, and labels you a common man not worth even the dirt you tread on.

[@midknight1339]

I'm not sure if I'm interpreting the metaphor here correctly, but it seems as though this might be the end of the Pi Day series. Which is, on the one hand, scary; something which I quite literally grew up with is disappearing. But on the other hand, it's oddly reassuring. This series has done for me (and millions of others) everything that it could. Its work is - against all odds - complete. Maybe someday I'll make my own such series, and know that someday it too might achieve its goals. Thank you for everything, Vi.

[@plushloler]

This series is over, but the channel is not.

[@viliml2763]

@@plushloler But there's nothing on the channel anymore except that series...

[@plushloler]

@@viliml2763 which means that without this series Vi can start doing other content.

[@kruks]

@@plushloler - That's an odd take. You make it sound like Pi Day was constraining Vi, rather than it simply being an incentive for Vi. What makes you think it's the former and not the latter? As far as I'm aware, and I admit this involves some amount of conjecture, Vi is happy not making a living on KZbin and simply makes videos when inspired. Pi Day was once an inspiration and perhaps now it's not. Why would that suggest a new inspiration?

[@thisismyCoolFace]

Pi day sucks anyways. Celebrate Tau Day instead.

[@emerz3530]

What a wonderful thing to see on my birthday! Vihart is such a delight, I can confidently say she's my idol.

[@Vihart]

Happy Birthday! :D

[@IceFox09]

Hap Birth

[@Bagel10]

Happy Birthday!

[@j.spiegel3650]

Birthday twins!

[@josuelservin]

Happy birthday!

[@Ruminations09]

13 years... dang... This series is one of the longest things I've continually watched (on or off KZbin). This might not be the proper forum to express this, but I feel like a lot of my formative years were shaped by your videos. When I was in middle school, your pi videos inspired me to learn more about pi (and tau) which fostered a really persistent love of both math and science that carried through my high school years. In my junior year of high school, you released On Gender, which was probably the first major step in me realizing I was non-binary. Realizing both the ways in which my experience matched yours - as well as the places where our experiences differed - led me to question things about myself that I had taken for granted my whole life. There's not really any good way to properly thank someone for that kind of indirect action - you don't know me, and obviously I know those videos weren't made for me specifically. But they still had a big effect on me and I truly appreciate it.

[@AnonyMous-pi9zm]

On Gender was really the thing that opened my brain to the notion that other people can have a different experience than myself. With gender, with race, with liking or not liking mathematics or art or whatever. Sure, I knew that people were different, but I didn't have a framework for understanding those differences and how it impacts people. Vi implored me be empathetic to other people in a way that my upbringing never really fostered.

[@agargamer6759]

Damn, this is bittersweet. But a beautiful sendoff to an iconic series

[@angeloid_]

Today I woke up, and noticed "3/14... Isn't that pi day...?" And suddenly these memories of when I was a kid watching Vihart for fun come back to me. I figured, "I wonder if she still uploads?" and came here to happily bring back a slice of my childhood :)

[@RedHair651]

Omg is that why it's Pi day in the US? I never noticed that with my DD/MM/YYYY

[@MilesDashing]

Vihart is not the only person I've fallen in love with without ever meeting or truly interacting with them (I miss you, Lindsay!), but she is the only person I've ever fallen in love with without ever meeting them AND without ever seeing what they look like. ♥♥♥

[@jacmac225]

@@MilesDashing 👀👀 yikes... parasocial much? Like, i get what you mean-- 7 years ago, in middle school, I was crushing on Vi too, but LOVE?? That's a bit much... its a lot much ;;o-o go outside lil bro

[@thromboid]

Elsewhere it could have been 22/7. ;D

[@noodlestheturtle1]

you can tell this series was going on for 13 years by the amount of people saying how it inspired them to pursue math/STEM fields from a young age. Likewise, vihart shaped a lot of my thoughts on math from when I was a kid and now I am in university studying math! It always makes me so happy to see a new vihart video!!

[@3geek14]

I think this has been a very wholesome end to a fun series of videos. There's a tinge of sadness, but I think it's better than letting things run for too long.

[@nattpich]

Most people are saying your videos got them into math but I’m here to thank you for getting me doodling, your videos single-handedly raised my interest in doodles which has now led to art as a career! So great to see you’re still making videos and so glad they’re popping up in my feed again!

[@AllenGrimm1145]

I think 4:44 implies that the reason the measurements come out to 12 digits is because, rather than the universe adjusting itself, Triangle's somehow been "eating" the tiny missing piece of pi out of the universe cone-style each time the Sciences make a measurement to mess with their results (and also to help themself become a circle to fulfil their own side of the bet, although that part doesn't work out).

[@carykh]

I love seeing the cute little chemistry characters! The geometry lore is expanding :O

[@Smams19]

Surprised no one said "Hi Cary" this time, lol But yeah, the lore is expanding, and we need to try to keep up, or else we will be left in the dust of irrationality

[@AAAAAA-qs1bv]

@@Smams19Ha, fool. You were now the one to say "Hi Cary"

[@Forcoy]

Bye Cary

[@katmaye5214]

Pi day is my birthday and these videos are always such a wonderful birthday gift. It's like a piece of the way the internet used to be when I was younger. Thanks for the tradition and the nostalgia. Hope to see you next year and maybe sometimes in-between too!

[@charliegregg5691]

Mine too! Happy Birthday!

[@sexyscientist]

Happy birthday, Kat!🎂

[@crabnix]

Happy Birthday Kat

[@andpersand25]

Hey nice!

[@freemanthompson706]

I believe Albert Einstein was also born on this day. I'm jealous.

[@karlizeholguin1881]

So glad our beloved triangle has brought us all together on this pi day once again 🙏

[@Kaliesophic]

Happy Vi day!... I mean, Pi day! I remember in math class like, 10 or 11 years ago when my first highschool math teacher first showed me one of your videos. I think that your videos helped me find the beauty in math. It isn't rote memorization, contrived problems, and meaningless busywork- it's beauty, and it's a set of tools to see and understand the beauty in the world. And doodles and hexaflexagons! Now, ten years later, I've got a physics degree and I dunno if I would've were it not for that. Thanks so much for everything, Vi. All the best, whatever you're doing.

[@AnonyMous-pi9zm]

Vi Hart is like the TI BASIC programming language on your TI-84 calculator. It isn't super intense learning about maths or programming, it's kinda useless, but also, it helped you get over that hump of misery that is middle school and fostered a lifelong and willing exploration of STEM. Vi Hart and TI BASIC both hold a special place in my heart.

[@StarPlatinum7912]

*THE RETURN OF THR KING!!!*

[@NonTwinBrothers]

That's rich for you to say. Circle.

[@ephraimcullen]

I love how this is edited but is still spelled wrong, haha

[@runed0s86]

What does THR sound sound like?

[@st1220]

THR KING

[@asteraceae]

As someone with a math based disability I found so much joy in your videos where you loved math. Your videos helped me when I was lost in my 11th grade math class, when I was failing 7th grade math class, when I was in remedial math classes in elementary school and didn’t know what was wrong with me. You helped me love math even though I didn’t understand it and I will always treasure that even when you aren’t making videos anymore. Thank you Vi, you’re an inspiration to so many people around the world

[@nathanbcrazy931]

Each Vihart video at this point is such an unexpected gift, but if this is the end, thanks for all the great math over the years!

[@tanman999]

What is the significance of 12 digits? According to google, which we all know to be infallible, It would take 39 digits of pi to measure the circumference of the observable universe to within the width of a hydrogen atom, and 63 digits to measure it to within 1 Planck length. Edit: ok, nvm. From the title it's obvious that's they are just saying that 12 videos is enough in this series, and that they don't want to keep making these videos.

[@masterYoshimistsu]

Except they made 13 videos on this series.

[@stevens4957]

​@@masterYoshimistsu how about 12 in the series, 1 on the series?

[@FlyingDominion]

She said "happy pi day," so it must be part of the series.

[@Poppamunz]

I really hope it isn't actually the end, though I totally respect if it is

[@leif1075]

So the 12 is totally arbitrary then right? Other than one for every month of the year I mean? "Science" hasn't in any way actually suggested pi is well apporixmated by 12 right?

[@no1legobatmanfan]

im so glad you still exist. im 15 now but when i was in elementary school i was very obsessed with your videos and they were the reason i was and still am into mathematics.

[@void3926]

I'm from Greece and years ago when I was in highschool I translated and used one of your videos in my math class for a project and got an A+!! That is to say, this was another fun video which taught me stuff. Glad to have you back, even for just this one. Lot's of love

[@birdinaboxx]

Let's gooooo It's always a good day when Vi uploads

[@ditzfough]

We love you and miss you Vihart. Hope your life is fullfilling and joyful.

[@ilikeairplanes6391]

HAPPY PI DAY EVERYONE! And im very happy you uploaded vi, You made my day even better!

[@scalenetriangles2520]

Almost makes the "How many digits of pi can you remember?" competition on my campus seem a bit silly... Happy Pi day! It's always a treat to see a video from you, I may have missed some for awhile but I remember when my family and I found your channel through the Hexaflexagons 10 years ago, as kids me and my siblings loved making them! You definitely showed us that math and geometry can be more interesting than just numbers in a textbook, and that art is allowed to be a bit strange, and those are things I still try to cling on to to this day! (I'm taking engineering right now, but struggling hard with the more recent math). On this pi day I just want to say thank you!

[@vincentpelletier57]

I was waiting for the punchline that it was 12 digits because that is the precision on the calculator they were using 😀 Oh well, keeping it a mystery is good too!

[@yaya2464]

Happy Pi Day, Vi! I've watched your videos for nearly 10 years now. When my math tutor first showed me your channel, it helped the little nerd that I was have something to connect with and view math as what it is....a work of art but also an awesomely fun toy. Even now I'll go back every now and then to binge your channel when I'm nostalgic for a simpler time when polynomials were the most complicated problem I had to solve in life. Thank you for your videos and your dedication to your craft. Hope you eat lots of fruit-filled circle-y crusts today! :)

[@mitchellmarinac6893]

Vi Hart is always so amazing at showing the beauty of mathematics. I'm sure many a mathematician has been encouraged to continue or commence their studies by seeing one of your videos. Glad to have you back with another video for another year!

[@astrid3522]

So comforting to have another pi day video that i look forward to every year 💛💛

[@LilythathappenstobeinaValley]

oh nooo...

[@Hankathan]

Yes what a wholesome and perpetual tradition that I love 💛💛 (Also thank you so much Vihart! You've done so much already, you deserve a break.)

[@mariamshariff6540]

when we needed her the most she returned

[@iamdigory]

... to say she wouldn't be returning in this way again

[@tiniesttim9895]

I used to watch your videos a very long time ago, but one day completely forgot about them. I’ve been trying to find your channel ever since then, and your videos are exactly as good as I remember them being.

[@andrewordonez8870]

Love this channel, even if the pi day series is ending, it’s hard to explain but I feel like I wouldn’t be where I am today without your videos, so thank you!

[@hacim42]

I love that these videos are described as fables. It makes the concepts way easier to grasp.

[@TazariaGaming]

Thank you for all your amazing videos Vi! They're always very calming and yet incredibly insightful to watch. If this is goodbye, I hope you keep inspiring people the way you inspired all of us. Thank you for everything

[@julierosemodelproductions]

AAAAHHH hi ! i watched a lot of your vids when i was in highschool and omg just came across this channel again

[@newmoonsmile]

Even if you don't do more Pi day videos, I hope you updated when you can. Your videos are a riot.

[@Account-kv3jc]

Thank you for being a safe spot for me to escape to when I was 8. Always went to your channel to help with finding ways to make learning fun in my eyes. You inspired me to have fun with numbers and math whilst struggling to understand the basics in elementary. Thank you for sticking around on KZbin and never changing your fun, entertaining content. I feel a word bigger than "Thank you," but i don't know if there's a word for it. You deserve it, though. Continue to be a cool hexaflexagon 😄

[@ohthereyouarepeter1435]

And the GOAT has returned right when we needed her the most 💜 🥧🥧🥧

[@boumbh]

So happy to watch you again! Thank you for your anual video 😊, I still love them as much. I'll also be there on the 28/06, just in case 😊...

[@idk-kx8nx]

hi vi!! you'll probably not see this, but if you do, i really want to thank you. you made mathematics very cool, fun and approachable for me. i started seeing your videos in 2014, which is when i was first introduced to youtube and was just a wee little kid lol. i ended up taking stem subjects in my final years of high school, pursued a stem degree and now i even have a job in stem! thank you for getting me (and many many other people) really interested in maths!! i will really miss this series since it was my introduction to your channel all the way back then and i've seen every single vid since then. thank you so much for all your work

[@AnuraYearwood]

I dont understand any of your videos but theure fun to watch, i like your voice and the doodle are fun. 😃

[@HBMmaster]

love this series :)

[@Yourlocaltrashgoblin]

It never ceases to make me happy watching ur math vids, do I understand most of them, no not at alll, but I enjoy them!

[@spectralspectra2282]

Teacher: well class today we're gonna talk about Pi and the infinite digits it possesses Vihart: No, it only has 12 digits

[@qwerty_cake]

Your videos are always delightful. Thank you for the many Pi Days you’ve shared with us ❤️

[@nobodyimportant1968]

i've missed the world's #1 recreational mathemusician! happy pi day to an absolute icon!! thank you for being a big part of my life, from cool lil music box and piano songs i still like to listen to, to hexaflexagons (aka, the world's best stim/fidget toy)! you are 1 cool triangle person :) as a dyscalculiac, you are the one reason i do not 100% hate math!! (just my long since past math classes of yore, which were nowhere as fun as sneakily watching vihart videos on my phone) math is cool! it is sorcery i cannot possess but it is very cool sorcery nonetheless

[@SuperCripple]

You are one of the very first channels I started following. Thank you for existing.

[@OKaysional]

im smart enough to figure out this was a metaphor but not smart enough to figure out what the metaphor is

[@Coffee_Toffee]

Thanks Vi, for all that you've done!

[@dandymcgee]

Vihart upload on Pi Day is the most reliable and predictable thing on all of KZbin. Grats on 13 years! Hope you are well. :)

[@GetRidOfHandles]

This is the first time one of your videos has popped up in my recommended in a few years, and I’m glad it has.

[@adm_131]

Forgot it was Pi day until you uploaded lol

[@veggiet2009]

I was reminded of pi Day when I saw Matt Parker's video a couple days ago

[@Tubajock2]

Glad to see a video from a creator that always brings a smile to my face, thank you!

[@notpsicoh2107]

looks like circle got you to make another pi day video though, so I guess that makes us the real winners.

[@bigchuckstar]

it always makes me happy to see one of your videos popping up in my recommendations. thanks for your time and trouble to make our days just a bit better

[@aguyontheinternet8436]

I am incredibly confused at how circle was only able to show pi to 12 digits.

[@pvic6959]

your videos, your style, your voice bring me so much joy. i started watching you as a student many many many years ago. and when i watch your videos now, it takes me back to the child like curiosity i had. thank you

[@lightlysaltedman]

idk as a musician i never learned to count past 4

[@JohnDoe-jh5yr]

Try varying time signatures

[@SmolGhost13]

lol

[@joshuahafer]

I have shown your videos in my US high school math classes since I started 7 years ago. Thank you so much for making learning fun. FYI the video I show that really gets me going in class is Phi and how plants "know how to grow". I think I'm going to go watch it now.

[@DozyBinsh]

I don't know. I think I'd trust Triangle to know a thing or two about √2, but yeah, pi is kinda outside their lane.

[@mathematicskid]

I think I'd trust Triangle to know a thing or two about √3

[@MyNATESH]

Wow. Watching your videos is like falling in love with the Truth again and again. It sparks my brain cells and infuses a happiness comforting colourful substance in them. It makes my core feel light

[@lily_lxndr]

I’m so early that nobody can tell me if this is real or not 😳

[@rubylandau-pincus5490]

I’m so early I found one of my favorite youtubers in the comments (Hi from a patron!)

[@hexeddecimals]

oh hi lily! cool to see you here

[@purplenanite]

it's not *real* real, as far as I can tell, it's an extended metaphor that she's only doing 12 videos pi does have more digits than 12 though

[@lily_lxndr]

@@rubylandau-pincus5490 omg hi Ruby, i'd know that name anywhere!

[@lily_lxndr]

@@hexeddecimals hi! :)

[@BobAxiom]

“12 is a … lot!” 😂 Happy PI day from an OG fan. When I started watching your videos, my hair still had pigment! 🙂

[@katakana1]

Been a hard night, always nice for Vi to give us her yearly Pi-ramblings. Though, the real reason those pesky scientists always measured 12 digits is that they didn't use precise enough measurements, and they needed to keep their sigfigs in order! Also 5:40 Triangle has at _least_ 3 eyes

[@zap3231]

You know, I literally JUST found out about your channel about 30 minutes ago, and I came here to say: The timlessness of how your content was 10 to 12 years ago (as youtube reccomendations showed me as my introduction to you) all the way to today makes you an incredibly rare find in youtube nowadays and someone I really respect. It's gotten me enamored with your channel already. Now I'm arriving here at what appears to be the end of a series that has spanned for 13 years that some people here claim they grew up with and I can't help but feel some vague sort of "damn, I missed out" feeling. I mean, I'm 18 and I've been interested in math for forever, I WISH I knew about this channel that long ago. But oh well, can't live in the past I guess. I just wanted to say that, whatever it is that starts and ends, I'm living proof that what you built can blow people's minds even after it's over. So, whatever you do in the future, be yourself, and you'll always shine. It feels weird saying this as I've *just* discovered your existance, but thank you for being yourself.

[@hexelotl8440]

When I tell you I *R A N*

[@ewornotloc]

I first watch a video of yours in middle school, I'm now a college junior getting a math degree. Happy 13 years, happy pi day!

[@WindStreak_]

If you've said all you want to say, then not saying anymore is a good idea. Happy Pi day!

[@dientesfelices416]

Circle is so smol and round and adorable ;w; must protecc

[@darksentinel082]

I don’t get what the metaphor is supposed to be here, but it made me really uncomfortable for some reason

[@oledakaajel]

I can't tell whether it's even a metaphor or not

[@BurgerSoda]

the legend is back!

[@transmothra]

This makes me happier than is mathematically (or medically) prudent

[@antitorpiliko]

Wow, this has been fantastic.. Thank you, and best of luck with your life!

[@purplenanite]

I know it's meant to be a metaphor, but asserting that pi has 12 digits in the real world and that you have the science and evidence to back it up, and anyone who disagrees is like the annoying circle, especially in what i thought was an educational video super bothers me

[@quinncormier-bq2pt]

The Pi day videos have been such a staple in my life. I saw my first in elementary school, now I’m studying math at university. Thanks for showing us the fun side of math!

[@beretperson]

Wait, is it really true that in the physical world, pi can't be measured beyond the 12th digit?

[@Caterpie56]

It only has 12 digits, how could you measure more things than there are?

[@hexeddecimals]

it's true to some amount of digits that there's a limit to the precision of pi's measurable value, but I think vihart only chose 12 because she's done 12 (now 13) pi day videos

[@52flyingbicycles]

I’m going to say no, though 12 digits would be an insanely precise calculation. Let’s say we have a perfect circle, with a crystalline structure accurate to the atom. Atoms are about 100 picometers wide, so they are our limit to accuracy. There are 1E10 of those in a meter, so 10 digits of pi. To measure 13 digits of pi, we would need an additional 3 orders of magnitude, so our circle would need to be over 1000 meters around with precision down to the atom. However, we can measure pi indirectly through the physical constants, which we have extremely precise measurements of.

[@kyle-silver]

I also wonder if it’s a puzzle, as in: what system of mathematics is there where Pi isn’t irrational? And that would be a “universe” that uses a different definition of distance, something closer to a Manhattan distance

[@TheBasikShow]

To accurately measure the circumference of the observable universe in Planck lengths, you need about 62 digits of pi. So, that’s an upper limit to the amount of pi that could even be measured in principle. To accurately measure the circumference of the earth in millimeters, a much more reasonable value, you only need about ten or eleven digits of pi. Twelve is more than enough. If using a high-tech laboratory with electron microscopy, accurately measuring a meter-wide circle will also need ten or eleven digits. So yeah, 12 digits is a reasonable limit for how measured a circle could be on Earth. Keep in mind, though, that the actual difficult part of measuring a circle in the real world is creating a perfect circle in the first place. All of this business about how much precision would be needed if we did have a perfect circle is just silly fun.

[@joshm.6191]

I watched your pi day videos every year growing up and now I’m in college. Thank you for all the inspiration 😊

[@n.d.1315]

Started watching during 6th grade pre-algebra, watching now during college pre-calculus. Love your videos! And your Tau video helps

[@CodeOmega0]

Always love seeing a Pi Hart video. ❤

[@andpersand25]

Thanks for the great time to celebrate Pi Vihart!

[@ethanthan3115]

cant believe this channel has existed for so long and NOW i discover it??

[@ideamissing]

Watching this video was time well spent. Thank you for posting this :)

[@tylermorgan1028]

Vi, I have been watching your videos since I was really young, something about those old L-Rules videos with turning simple lines and turns into complex shapes used to amaze me. Today I made an L-Rules generator to make procedurally modeled plants, and I'm so happy. Thank you for all the work you've put in and for the inspiration you've brought to me and countless others. Happy belated pi day :)

[@aamr7434]

wow! i literally just showed my friends your flex mex video after seeing one of them perform some tomfoolery with a tortilla and saw that you had uploaded! whether this is the end of pi day videos or not, i’m eternally grateful for your videos encouraging curiosity (and keeping it a little silly) in the pursuit of knowledge. thanks vi :)

[@elitettelbach4247]

Thank you for the closure :) Happy belated pi day! Also something about the giant triangle looming over the science friends and circle is so amusing to me. Your videos are always a delight and have been very inspirational over the years. Thank you!

[@onceagain569]

Just gotta say, I seriously admire the way you think 🌻

[@ScutoidStudios]

I absolutely love this video. It gives you a completely different experience watching it the second time.

[@ChrisLeeW00]

Vihart, you really are a pioneer in community learning, you seriously changed the world in such a positive way, and I hope you know that.

[@Orpur.e]

I've been watching your videos for the last 9 years and I'm always so happy to share them with my friends 💜 Thank you for making these videos on the internet and thank you for keeping me interested in maths

[@erikpip3024]

I've been waiting all year for this video to come out!

[@BLACKTIGGA]

Another year another great video. Thanks again

[@kaustubhgupta168]

I was actually waiting for your Pi Day Video!!! The first thing in my search history today was just searching up vihart Thanks for the video (I woke up 5 min ago)

[@deathstarkille22]

hi vihart, i just wanna say a few things 1. literally before i turned on this video, i found the pi that i bought for my birthday on the 11th and began to eat it (it's half of a pie so it's just one pi) i thought that that was a great coincidence 2. what the HEI-HEI is this video? of course i turn it on at nearly 3 am (PST) and it messes with my brain too much 3. I wanna also give you some appreciation. your fibonacci videos really stuck out to me as a way too curious and too smart 7 year old and they stuck with me for years until i somehow stumbled upon your channel again in early-2022 but got way into it in late 2022. being a silly little guy (and also very autistic), i soon binged a fair few number of your videos over the span of a couple of weeks, and started getting way too into fibonacci inspired drawings. from December 22-january 3 (2022/2023), i was in a mental hospital for another attempt, and drawing your pinecone thingies was waaay too much fun, especially when i went from 3-54 curves. eventually, i ended up going to-to-toe with a guy working there about your three utility problem (his solution was to have multiple lines running exactly parallel to each other) and discussing fibonacci and other stuff with the staff that i eventually put up seven pieces of paper for a beginner's guide to fibonacci for the staff to read. you would not BELIEVE the amount of adults who asked me if i figured out all the the maths (i was 17 at the time) 4. you're literally so cool!! reading your wiki page and finding out about your gender beliefs made me so happy about the representation (and the fact that they wrote your wiki page in they/them pronouns), and learning about the fact that you're considered a mathematician despite having a music degree makes me think maybe one day i can be awesome and cool like that even if i can't have the degree i desire 5. love your music videos :D doodle music and a song about a circle constant are my all-time favourites, and I've been able to teach several people about tau just by turning on your song. a lot of people are impressed with how you put the digits of tau into a scale so that the higher the number, the higher you sang youre amazing ❤❤❤

[@KittyLikesFire]

i dont realy understand anything in this video (like most of the videos) but i watch them over and over to try to understand anyway, and i'm glad you are still here. :)

[@angixm]

Awww… my kids loved your channel when they were young!! My daughter just sent this video to me to say she still loves them. 🥰 Thank you Vi!!!!! 🎉💞🎉 Not sure if you subscribe to the biblical shape of the earth but it isn’t a globe. 🥰🙏🏻 That was a fun research project!! 🤙🏻