tgb

20 ms·

211.
by tgb 6y ago
Here's a wonderful one I read a little over a year ago: "Estimating the number of unseen species: A bird in the hand is worth log(n) in the bush" https://arxiv.org/abs/1511.07428 https://www.p
212.
by tgb 6y ago
It's also much harder to test spread. You'd have to do repeated follow-up of all participants with frequent testing. When you have 40,000 participants, that's a significant concern. Trials like these are called "large, s
213.
by tgb 6y ago
Sorry, but my question is about whether UUIDs are or are not recommended for use as primary keys . The article seems to be saying both No and Yes to that question.
214.
by tgb 6y ago
Maybe I just don't know enough about this field, but I didn't actually understand the objections in that post. They were either orthogonal to UUID use (don't store them as string, don't share them publicly) or seemed to
215.
by tgb 6y ago
The standard practice group includes significant mask wear, so the comparison cannot conclude that cloth is worse than nothing.
216.
by tgb 6y ago
It doesn't even say that! There's no no-mask control group to compare against. (And FYI not all medical masks are N95, probably most aren't. It appears that the ones studied there are not N95 but rather the standard disposa
217.
by tgb 6y ago
I also found that part baffling: the US government routinely reimburses for travel expenses including food.
218.
by tgb 6y ago
I don't think that gives an accurate picture of what happened. Even AstraZeneca themselves are calling the half-dosage a mistake. Their US trial of that vaccine does not currently contain a half-dose arm [1], though it likely will be a
219.
by tgb 6y ago
If you hold a strawpoll of everyone around, then you may get an expert. But you will also primarily get non-experts, which is the problem and what headmelted is pointing out. If expert opinions are desired, why not ask for that? The non-exp
220.
by tgb 6y ago
You asked what "people on HN" think which is not exactly the top way to fish out experts.
221.
by tgb 6y ago
I spend all year not getting myself things so that I can let others get them for me for Christmas or my birthday. But this is exactly the point that the article seems to miss: there's basically no such thing as a good gift for a lot of
222.
by tgb 6y ago
The release notes are here [1] and I assume the reason this is being posted is because of: > The new resolver now resolves packages in a deterministic order. ( https://github.com/pypa/pip/pull/9100 ) [1] ht
223.
by tgb 6y ago
> between good players, a one-piece advantage is enough to cause the disadvantaged party to resign. Is this accurate? I would have assumed that, say, positioning is equally important and a naive "count the pieces" assessment wo
224.
by tgb 6y ago
Apparently at least some of the limitations are actually due to an EU import tax on video recorders but not on cameras. [1] Though this also says that that will be fixed in 2019, so I don't know what the current situation is. [1] http
225.
by tgb 6y ago
Most protein coding genes produce multiple proteins, through having multiple isoforms, and proteins are modified post-translationally. 500,000 is on the higher end of estimates I've heard, but hundreds of thousands is the right order o
226.
by tgb 6y ago
This reminds me aesthetically of the game Gorogoa. It's beautiful and only takes a few hours to complete, so I highly recommend it. [1] http://gorogoa.com/
227.
by tgb 6y ago
The "lottery ticket" model is additive: 100 minor exposures adds up. The "threshold" model isn't: 100 minor exposures is no risk.
228.
by tgb 6y ago
I think it's patronizing to assume that someone is doing something out of a "false sense of comfort" instead of simply that it's easier for them to wear a mask 100% of the time than to take it on/off whenever they c
229.
by tgb 6y ago
I'm not accepting the numbers. I'm accepting the "hospitals are not overrun" observation, which is very hard to cover-up. I happen to know someone working in a Beijing hospital and it is not overrun. How else would you e
230.
by tgb 6y ago
While I share your skepticism, there doesn't seem to be much room for cover-up here (though I'm sure the initial outbreak was significantly under-counted). My understanding is that restrictions are pretty minimal apart from strict
231.
by tgb 6y ago
So how do I know these things don't exist? How can I know that the algorithm isn't just regurgitating something it was trained on?
232.
by tgb 6y ago
A lot of road damage in some parts of the world is caused by nature itself, though. Even roads without any freight traffic get frost heaves.
233.
by tgb 6y ago
Say a student is completing a problem set and is asked to prove P. If the student writes "P therefore Q therefore True since Q was proven in class. QED" then the student has committed a significant error in reasoning. If the stude
234.
by tgb 6y ago
It's a completely valid work to do to figure out how to write a proof, but is not a proof itself. The section in the article states all my thoughts on that matter more clearly than I can. https://math.vanderbilt.edu/sch
235.
by tgb 6y ago
I no longer teach. I'm also skeptical of how useful this page is except as therapy for teachers - students have to make mistakes to learn from them. Though it could be a good reference to point to after the fact instead of explaining t
236.
by tgb 6y ago
The "working backwards" one was what I always noticed students doing. It's super frustrating as a teacher since they're simultaneously so close to being right (when they manage to avoid an irreversible step) and yet al
237.
by tgb 6y ago
Is NNT a good number to use when evaluating effectiveness of vaccines during a pandemic? It'll change substantially over time as the virus waxes and wanes and from location to location. So it won't be comparable across different v
238.
by tgb 6y ago
You're right, that's clearly a refined non-sucrose sugar. But I guess I'm thinking of granulated sugars, i.e. something that differs from white granulated sugar in "only" chemical composition (or as close to that as
239.
by tgb 6y ago
Interesting. I would have thought that all sugars would be out for keto diets.
240.
by tgb 6y ago
On a tangent, why don't we see much use of alternative sugars in cooking and baking? Refined sugar all seems to be sucrose. There are non-refined sugar sources like honey that aren't sucrose, but obviously honey also differs in ma

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