Hacker News: justincredible

New comment by justincredible in "A portentous reunion"

justincredible — Thu, 28 May 2026 16:53:41 +0000

While partitioning these cultural attitudes and artifacts by decades is a useful heuristic, I often feel like the actual cutoff point is around mid-decade. The late '80s feels closer the the early '90s than it does the early '80s.

New comment by justincredible in "Fermat's Last Theorem – how it's going"

justincredible — Thu, 12 Dec 2024 21:10:43 +0000

Would it take too long or is it just that the margin is too small?

New comment by justincredible in "Spending 3 months investigating a 7-year old bug and fixing it in 1 line of code"

justincredible — Fri, 21 Jun 2024 20:20:51 +0000

The article isn't very clear but assuming it's a 16-bit numerator and 8-bit denominator, then MSN's answer to [0] lays it out (although for higher bit sizes). If the denominator was 16-bit, then the top-rated answer (by caf) to the same SO question seems like another approach, but that wouldn't be a one line change.

[0] https://stackoverflow.com/questions/2566010/fastest-way-to-c...

New comment by justincredible in "Things That Don't Work"

justincredible — Thu, 21 Mar 2024 19:31:51 +0000

Huh? He's saying that caloric restriction does work, but many people only achieve that by temporarily restricting their food options.

The idea that dieting is a temporary change to your food habits is why most "diets" eventually fail.

New comment by justincredible in "Rapier is a set of 2D and 3D physics engines written in Rust"

justincredible — Tue, 27 Feb 2024 17:37:07 +0000

My layman understanding would be that you're not gaining anything other than a more abstract model. If you want performance, the code is going to boil down to the equivalent linear algebra + quaternion operations.

New comment by justincredible in "Git Branches: Intuition and Reality"

justincredible — Thu, 23 Nov 2023 17:21:13 +0000

Another situation where the intuition breaks is that a repo can have branches without a common base (i.e., disconnected graph).

Definitely unusual, but sometimes I want to move a folder between repos while preserving the commit history of the folder[0].

[0] https://stackoverflow.com/questions/41811986/git-move-direct...

New comment by justincredible in "The Decomposition of Rotten Tomatoes"

justincredible — Fri, 08 Sep 2023 04:36:21 +0000

I agree that they shouldn't have re-edited the movie based on Carrie Fisher's death IRL, but that scene is a masterclass in bad writing.

Rian's intention was to demonstrate some semblance of humanity remained within Kylo. But the optics are that he is truly weak and in the end isn't even bothered much by the (for all he knows at the moment) imminent death of his mother. Had Kylo fired the shot he at least would have surpassed Vader in evilness, whether or not Leia saved herself.

I agree with the "fans" that she should have died in that scene, but since Rian was too scared to snuff Leia before Luke the scene shouldn't have been written in the first place.

New comment by justincredible in "I am afraid to inform you that you have built a compiler (2022)"

justincredible — Thu, 17 Aug 2023 23:34:17 +0000

TIL .pl is for Poland. The misuse of .io is probably more common.

New comment by justincredible in "Rust 1.71.0"

justincredible — Thu, 13 Jul 2023 16:33:40 +0000

Rust compilation is strict but not cruel. The suggested fixes associated with compilation errors are very friendly to beginners (one notable exception is errors around lifetimes).

Your concerns regarding "feature creep" are reasonable and would be expected for a language trying to displace C++.

Edit: grammar

New comment by justincredible in "The bottom emoji breaks rust-analyzer"

justincredible — Mon, 13 Feb 2023 21:22:12 +0000

[flagged]

New comment by justincredible in "Wobbly clock"

justincredible — Mon, 16 Jan 2023 18:29:00 +0000

It solves the problem of the child getting the wrong answer until they have to read a real mechanical clock.

New comment by justincredible in "The Parity of Zero"

justincredible — Thu, 24 Dec 2020 18:18:07 +0000

The orbit is closer and farther at different times of the year, but that is not the reason for the change of seasons.

New comment by justincredible in "The Parity of Zero"

justincredible — Thu, 24 Dec 2020 17:21:48 +0000

> Even numbers end with even digit

True (in even bases).

> Since 30 is even so must be 0

This is essentially the converse of the previously statement. Fortunately, the statement is based off an equivalence so it is also True.

New comment by justincredible in "A Theory of Software Architecture"

justincredible — Wed, 28 Oct 2020 22:39:55 +0000

Idempotent means feeding the output back in as the input will result in the same output. It might require purity, but is conceptually distinct.

For example, boolean negation is a pure function as it depends only its input and has no side-effects, but it's not idempotent since: not(not(var)) != not(var)

New comment by justincredible in "Threads Are a Bad Idea for Most Purposes (1995) [pdf]"

justincredible — Tue, 28 Jan 2020 20:19:15 +0000

The confusion might be due to everyone using concurrency to mean concurrency and/or parallelism.

New comment by justincredible in "In India What We Are Seeing Is the Symptoms of Fascism: Noam Chomsky"

justincredible — Thu, 23 Jan 2020 22:17:49 +0000

I believe it was God who included it, Moses just wrote it down.

New comment by justincredible in "A Sad Day for Rust"

justincredible — Fri, 17 Jan 2020 20:38:46 +0000

The request is unreasonable, but is the second question not valid?

New comment by justincredible in "Contractor admits planting logic bombs in his software"

justincredible — Thu, 19 Dec 2019 19:59:15 +0000

To be precise, the "bomb" was being obfuscated by the password, not the password per se.

New comment by justincredible in "An account is now required to read Reddit comment threads?"

justincredible — Fri, 13 Dec 2019 16:27:02 +0000

Most of the answers to that last question are inane and unproductive. The first answer is funny though: https://www.quora.com/What-is-1+1

New comment by justincredible in "Google has handed information related to my account to the DoJ"

justincredible — Wed, 04 Dec 2019 18:09:33 +0000

Didn't the investigation end when the report was released?