robryk

Joined 13 years ago

Karma
1,089
Submissions
540
Member since
Jun 11
my public key: https://keybase.io/robryk; my proof: https://keybase.io/robryk/sigs/RU5rlFtiJ80VXVFLurDQ87GLusF5bcVplAVoAUmmqJ0

You can reach me at @robryk:wuatek.is

View on Hacker News

Recent submissions

Comment · 8 days ago
> most of the probabilistic methods (specifically those that use a logarithmic amount of space)

These are by far not most, nor most of the practically useful ones. Directed graph reachability, given an adjacency list as input, is NL-hard.

Comment · 10 months ago
Why do you think that this other kind of accountability (which reminds me of the way captain's or commander's responsibility is often described) is incompatible with what the article describes? Due to the focus on necessity of manual testing?
Comment · 10 months ago
Would automated tests that produce a transcript of what they've done allow perusing that transcript to substitute for manual testing?
Comment · 10 months ago
Even if the situations are noticed and seen fully, does it cause the schools to not punish the victim? The stories I've heard about zero tolerance policies were that _even when the situation was fully obvious_, victims got punished because they took part in an altercation.
Comment · 11 months ago
Why? You just need to choose electronics that doesn't use micro mechanical designs that would be damaged by helium. (Or are you pointing at some other reason?)
Comment · 1 year ago
The larger issue for most quantum key exchange setups is the transition from classical to quantum: you want not to accidentally generate two unentangled photons in the same secret polarization.
Comment · 2 years ago
I think you are on the right track (sorry, I did not verify all the individual statements). If you weren't already aware of them, you might wish to learn what normal subgroups are, see how you can have a subgroup that's not a normal subgroup (and probably see what cosets are at the same time), and see how does dividing a group by a normal subgroup (to yield a group) work and what properties it has.
Comment · 2 years ago
The reason why it's not so simple is that various operations on the cube do not commute (whereas rotations of different wheels on a combination lock do).
Comment · 2 years ago
Is it still not a free action if it replaced an ad?
Comment · 2 years ago
Is it also impractical for treating potable water supplies, or for treating wastewater? (You mentioned only _bottled_ water companies.)
Comment · 2 years ago
I don't see why one has to create the actor-actor relation table. I would rather search for shortest paths in the bipartite graph where nodes are movies and actors, and divide the results by 2.
Comment · 2 years ago
I wonder if they intend to measure pressure and display altitude difference (or at least its sign) at some point. (That could be very helpful when skiing.)
Comment · 2 years ago
You can always exfiltrate by inserting stuff into the page's DOM that will do the exfil from the page's context.
Comment · 2 years ago
Why isn't this the model case for small claims courts?
Comment · 2 years ago
As with race conditions, making things faster doesn't change things but only exposes preexisting problems. The preexisting problem I see here is sloppy definition of existence for the message: if you can see the message on a burning piece of paper, it should be considered to still exist (just as a message being sent with smoke signals does not disappear the moment it's committed to smoke).

E: The obvious way to fix this is to stop talking about messages existing/not existing, but talk in terms of messages being stored in X (or having been deleted from X), for some value of X.

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton