Twisol

28 ms·

331.
by Twisol 5y ago
On top of that, missions are heavily incentivized (in an "our success depends on this" way) to solve only the problems they absolutely need to solve, due to constraints on time, budget, and manpower. It's an incredible feat t
332.
by Twisol 5y ago
Most of the public specifications are distributed freely by the CCSDS (Consultative Committee for Space Data Systems): https://public.ccsds.org/Publications/BlueBooks.aspx The mission-specific parameters ("managed
333.
by Twisol 5y ago
Arguably, carcinization [0]. [0] https://en.wikipedia.org/wiki/Carcinisation
334.
by Twisol 5y ago
What if the runtime for language X (written in Y) rewrites X programs into the same language Z that Y itself compiles to? Yeah, there are up-front costs, so you're still technically correct, but I suspect this isn't something yo
335.
by Twisol 5y ago
If I understand the Valhalla proposed design [0], every primitive reference type `X` will have an associated primitive value type `X.val`, while every primitive value type `X` will have an associated primitive reference type `X.ref`. Which
336.
by Twisol 5y ago
To be entirely fair, neither is "shark" a single species... But yes -- my point was that no shark species formed a civilization over that vast period, so it's hard to say whether any dinosaur species would have.
337.
by Twisol 5y ago
It only took our species a few hundred thousand years at most, while it's been hundreds of times longer than that since the dinosaurs went extinct. At the same time, sharks never developed civilization, so who's to say?
338.
by Twisol 5y ago
Ah; I think we might only be disagreeing on terminology at this point, then. A physical "theory" is a coherent model that makes testable predictions in its own right, as in the "theory of gravitation". A hypothesis is an
339.
by Twisol 5y ago
Sorry, when I say "dimension" I mean another continuous spatial direction that you could move along, not the "another place" understanding of the word. Flatland [0] is a classic for trying to get in the right headspace.
340.
by Twisol 5y ago
Is that theory or observation? My understanding is that we know it doesn't react electromagnetically with other matter because we (failed to) observe that behavior, not because we expected it to behave that way a priori . If modified
341.
by Twisol 5y ago
By the nature of the question, no.
342.
by Twisol 5y ago
Yes; the "dark" in these terms reflects our lack of understanding about both topics, not that they share some "dark" aspect in common. They're names for holes in our models, not for entities predicted by them.
343.
by Twisol 5y ago
Not an uncommon lay theory, actually. Unfortunately, I recall reading somewhere [0] that, experimentally, the effects of gravity are consistent with it propagating in only three spatial dimensions. If it could leak out of (or into) "ou
344.
by Twisol 5y ago
For me, there have been many times when I've been playing Rocket League in almost a fugue state, where I'm only half paying attention to the game. (Like how you can drive for a while in your car in a half-daydream, and snap back
345.
by Twisol 5y ago
Just to add my own anecdatum here -- my mind's eye definitely encodes color, and I can relatively easily match a color in the real world to one in my mind's eye. Color gradients are instant for me, although I summon the incorrect
346.
by Twisol 5y ago
For what it's worth, I'm also completely worthless at art, despite being on the opposite end of the visualization spectrum -- I can easily conjure very detailed visual (and sonic) impressions in my mind's eye, and the act o
347.
by Twisol 5y ago
That's a heck of a great observation. In the complex numbers, every imaginary number is, indeed, just "i" scaled. But the quaternions are like three copies of the complex numbers glued together; you have multiple kinds of &qu
348.
by Twisol 5y ago
Aren't you doing a bit of an injustice to that article by cherry-picking that line? It's obviously written humorously; the very next words are: > Personally, I have always found it important to actually understand the things I
349.
by Twisol 5y ago
Because the construction generating this sequence of algebras doubles the dimension every time. https://en.m.wikipedia.org/wiki/Cayley%E2%80%93Dickson_const...
350.
by Twisol 5y ago
As a complete layperson, I suspect osmosis may be a good counterexample. Channels react selectively to various compounds, but water can probably pass through the membrane more easily. Wikipedia (heh) seems to support this idea, but my gosh
351.
by Twisol 5y ago
For anyone still reading this a week on, I got the recommended board in, and I needed a micro-USB cable -- preferably two, since it has two sockets (one for power and one for, I assume, programming). Luckily, I already have a few of these h
352.
by Twisol 5y ago
It is a kind of propagation, in the same sense that traffic waves propagate backwards relative to the flow of traffic, but the distinction here is really a good one. "Propagation" as a term encompasses two classes of propagation,
353.
by Twisol 5y ago
> Many apps I know simply have 1 user "myappuser" (or even default user) to access its DB. Sure; either those apps don't need to differentiate access between their users, in which case one role is sufficient, or they reimp
354.
by Twisol 5y ago
I don't think Sam is wrong, exactly -- and that second thread does add some of the missing nuance -- but I do think there's a key missing piece here. He's absolutely right that you shouldn't couple directly to the underl
355.
by Twisol 5y ago
I suspect Ada would make the cut, with the number of times it's been referenced in these contexts, but I haven't actually taken the time to learn Ada properly. It seems like a language before its time.
356.
by Twisol 5y ago
I applied within the last few months, and would swear I had the idle thought that it wasn't a round number like it used to be. Berenstain Bears moment, maybe!
357.
by Twisol 5y ago
As someone who's only worked with a prepared hardware kit (a dsPIC33F on an Explorer 16 that came with cables and the debugging puck), if I want to pick up the board they recommend in the blog post, do I need to make sure I get any oth
358.
by Twisol 5y ago
> As for security, Postgres supports Row Level Security. You can literally protect every single row of your data with a solid security policy using a security mechanism older and tested longer than the average age of your typical HN read
359.
by Twisol 5y ago
> In a matter of hours, commenters were able to dump sensitive data (passwords and all) by constructing specially crafted queries. To be fair, SQL injection attacks have been a common problem for a long time, and most websites did not ex
360.
by Twisol 5y ago
Hah. From the tutorial's "Winning" page: > This is an easy trophy. All you need to do is award it to yourself

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