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ghj

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Jack the Bipper [video]

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3 points·by ghj·3 yıl önce·0 comments

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ghj
·3 yıl önce·discuss
That's crazy high isn't it? That's 1 out of 250 people!
ghj
·3 yıl önce·discuss
Will you still be working on educational content on the side? (e.g. updating fast.ai and/or making one off lectures like https://www.youtube.com/watch?v=jkrNMKz9pWU)

Either way thank you for all the amazing free content you've already put out and good luck on the new endeavor!
ghj
·3 yıl önce·discuss
AdamantChicken2 (aka AlphaCode2) replied to the thread! https://codeforces.com/blog/entry/123035?#comment-1091379
ghj
·3 yıl önce·discuss
Some people on codeforces (the competitive programming platform that this was tested on) are discussing the model: https://codeforces.com/blog/entry/123035

Seems like they don't believe that it solved the 3200 rated problem (https://codeforces.com/contest/1810/problem/G) w/o data leakage

For context, there are only around 20 humans above 3200 rating in the world. During the contest, there were only 21 successful submissions from 25k participants for that problem.
ghj
·3 yıl önce·discuss
I remember deciding that I never want to ever have my DNA in any database after watching this talk:

DEF CON 25 - John Sotos - Genetic Diseases to Guide Digital Hacks of the Human Genome (2017): https://www.youtube.com/watch?v=HKQDSgBHPfY
ghj
·3 yıl önce·discuss
I didn't realize who this was by the title, but this is betaveros, the guy who won 1st place in Advent of Code every single year since 2019: https://clist.by/account/32289/resource/adventofcode.com/
ghj
·3 yıl önce·discuss
Copying from an older comment of mine shilling Pypy https://news.ycombinator.com/item?id=25595590

PyPy is pretty well stress-tested by the competitive programming community.

https://codeforces.com/contests has around 20-30k participants per contest, with contests happening roughly twice a week. I would say around 10% of them use python, with the vast majority choosing pypy over cpython.

I would guesstimate at least 100k lines of pypy is written per week just from these contests. This covers virtually every textbook algorithm you can think of and were automatically graded for correctness/speed/memory. Note that there's no special time multiplier for choosing a slower language, so if you're not within 2x the speed of the equivalent C++, your solution won't pass! (hence the popularity of pypy over cpython)

The sheer volume of advanced algorithms executed in pypy gives me huge amount of confidence in it. There was only one instance where I remember a contestant running into a bug with the jit, but it was fixed within a few days after being reported: https://codeforces.com/blog/entry/82329?#comment-693711 https://foss.heptapod.net/pypy/pypy/-/issues/3297.

New edit from that previous comment: there's now a Legendary Grandmaster (ELO rating > 3000, ranking 33 out of hundreds of thousands) who almost exclusively use pypy: https://codeforces.com/submissions/conqueror_of_tourist
ghj
·6 yıl önce·discuss
> I think this example is well known but I can’t think what it is

Could be the basel problem though he probably used this trick many times in his prolific life:

https://en.wikipedia.org/wiki/Basel_problem#Euler's_approach
ghj
·6 yıl önce·discuss
I guess we're past the point where codewords like "winnie the pooh" work but is NLP so advanced it can parse all the other ways human hint and indirectly communicate with each other?

Like can't I just send something like "hey coworker, lets do the thing that's opposite of ionized!". Or will the AI block my message (or more scarily, subtly rewrite it) and inform my manager?

This seems like tech with huge unintended consequences if perfected (even for their intended benign uses in workplaces) since it has the potential to be scaled up to censor society.