Hacker News: efavdb

New comment by efavdb in "Competitive Programmer's Handbook (2018) [pdf]"

efavdb — Tue, 06 Oct 2026 17:21:15 +0000

I see this author has a published book as well "Guide to Competitive Programming" - curious if it's the same text?

Illusory Dunning-Kruger Effect and Reciprocal Fits

efavdb — Mon, 28 Sep 2026 13:16:09 +0000

Article URL: https://jslandy.com/illusory-dunning-kruger-effect/

Comments URL: https://news.ycombinator.com/item?id=49877450

Points: 1

# Comments: 0

The Illusory Dunning-Kruger Effect and Reciprocal Fits

efavdb — Sun, 27 Sep 2026 16:34:15 +0000

Article URL: https://jslandy.com/illusory-dunning-kruger-effect/

Comments URL: https://news.ycombinator.com/item?id=49868247

Points: 2

# Comments: 0

It turns out Canada's population isn't shrinking after all

efavdb — Fri, 25 Sep 2026 13:38:49 +0000

Article URL: https://www.theglobeandmail.com/business/article-it-turns-out-canadas-population-isnt-shrinking-after-all/

Comments URL: https://news.ycombinator.com/item?id=49844507

Points: 2

# Comments: 0

New comment by efavdb in "The UV index is not the warm sensation of sunlight on bare skin"

efavdb — Wed, 23 Sep 2026 02:08:43 +0000

Strange. I thought a pale person would reflect more light so they’d burn less (obviously contrary to what we see). But apparently the resolution is that the uv is absorbed safely not reflected

Neo-Median Voter Model

efavdb — Tue, 22 Sep 2026 22:35:44 +0000

Article URL: https://www.betonit.ai/p/the-neo-median-voter-model

Comments URL: https://news.ycombinator.com/item?id=49809233

Points: 3

# Comments: 0

New comment by efavdb in "How do traffic signals work? (2019)"

efavdb — Mon, 21 Sep 2026 17:20:58 +0000

The two-adjacent signals causing extra traffic is something I encounter daily in Berkeley -- Ashby / Claremont & Ashby / Domingo. I probably blow an average of 5 minutes a day cause of that double intersection.

To highlight one other point from the video: You want a light to be able to clear the line built up each time. If not, flux in > flux out and that's a recipe for a growing line, which causes a traffic jam.

New comment by efavdb in "Why I didn’t sign the Fields medallists’ letter"

efavdb — Thu, 17 Sep 2026 22:50:55 +0000

I think they'll end up more like scientists. Landau famously advised his students to be proficient in math so that when they're working on a problem it's the scientific understanding that's the rate limiting step, not the math. Now mathematicians will be freed of some of the burden of proving things and their challenge will instead be to find interesting new things worth proving.

Numerical Tours

efavdb — Wed, 16 Sep 2026 16:51:56 +0000

Article URL: https://www.numerical-tours.com/python/

Comments URL: https://news.ycombinator.com/item?id=49729762

Points: 3

# Comments: 0

New comment by efavdb in "Show HN: An e-ink frame that hears birds and draws them as 1800s illustrations"

efavdb — Tue, 15 Sep 2026 18:54:13 +0000

Do you not like AI?

New comment by efavdb in "Growing proof that autonomous cars save lives"

efavdb — Wed, 09 Sep 2026 21:57:40 +0000

That’s the smart car

New comment by efavdb in "Navier-Stokes – Tristan Buckmaster [pdf]"

efavdb — Wed, 09 Sep 2026 13:55:54 +0000

Apparently Tristan was working on this problem for years, with AI providing help. Vs OpenAI spending a week with their new model, potentially having access to Tristan’s work.