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Comment by vasco | Hacker News Reader

This reminds me I've been curious to know what Hackernews people walk around with. I memorized 18 digits of Pi in highschool that I still remember and sometimes use as a bad joke here and there. But curious how many digits people here walk around remembering, specially if you aren't into competitively doing it (which I found out later is a thing).

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I memorised the sqrt of 2 in highschool to impress the teacher. The first 32 digits eventually became part of my passwords, but significantly reduced nowadays because I kept running into too many length restricted invalidations.

I remember up to around 3.14159265, which is roughly what most cheap calculators will show you.

Likewise. I just memorized what my 10 digit calculator showed me in high school.

There is a streamer who memorised 1000 digits of pi, on stream, from scratch, in 11 hours. She used the mind palace method.

Here's the whole vod, if curious: https://www.youtube.com/watch?v=TZqTIXCrC3g

Surprised it’s not Matt, although he’d probably misremember one digit anyway.

100 + a few now (since age ~15). I briefly knew 400, but didn't put in the practice to keep it (some sections of those later 100s are still there, but I can't access them as I'm missing some digits in between). It takes about 40min. to get 100 new digits into my head (just straight repetition, paying attention to the sounds and patterns in rhythmic groups). Keeping them long-term requires a lot of time spent on spaced repetition. I run through the first 100 digits just a few times a year now, and it's all still easily there.

I memorized and forgot 50 digits of Pi after doing some memory training game. Was a cool bar trick but ultimately lost my memory palace discipline. I might be able to pull out some percentage of accuracy if I focused but it feels fairly pointless.

I memorized 61 or a bit more digits probably 15 years ago. 61 digits stuck and I have them yet today.

My younger brother was competing with me. He knows ~160 digits.

No special memory tricks - just repeatedly reading/reciting until they stuck.

I memorized 20 digits when I was 11 or 12. I still remember them.

So, how about memorizing the last yet known 100 digits of Pi? Of course you would have to learn a new sequence from time to time. :)

I was up to 40 or 50 at one point (around age 18), but I don't think I can get past 20, now.

3.14 gets me from here to there, it's just transportation, good enough for me :)

I just remember the integer part.

18 including the leading 3.

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