voidmain

10 ms·

91.
by voidmain 4y ago
FoundationDB does interactive transactions.
92.
by voidmain 5y ago
In the modern, multicore world, it might make sense to make all system calls asynchronous, sort of like io_uring: you make one userspace call (which might or might not switch to kernel mode) to "start" the operation and then later
93.
by voidmain 5y ago
The new hot take (I heard it from Matt Levine, I think, but I doubt it's original to him) is that pyramid schemes solve the adoption problem for technologies with network effects. Everyone would be better off with better identity manag
94.
by voidmain 5y ago
Biometrics are not secrets (it must be assumed that attackers always possess all biometric data), but they can nevertheless be a good form of authentication when combined with situational awareness . If you try to use one of these hot glu
95.
by voidmain 5y ago
At Antithesis we are pretty calm and working on very interesting stuff. (You would have to relocate to the DC metro area, though.)
96.
by voidmain 5y ago
I've recently been wondering about the opposite. Maybe the whole Internet should be brought down for a couple of weeks a year, so that society can't become totally dependent on it. Your thermostat shouldn't require a cloud se
97.
by voidmain 5y ago
As I read TFA, the attack would take ~128 GPU-years to break most or all ZeroTier addresses, not per target. And the author says that there is plenty of room for optimization. And fpga or whatever might be much cheaper than GPU. And &quot
98.
by voidmain 5y ago
I think this is dangerous to use for many of the use cases that it would appear useful for, especially for any form of backups. By design, it protects the confidentiality of encrypted files but not the integrity, and in almost every real th
99.
by voidmain 5y ago
This usage is indeed very common, but it is always meant and understood hyperbolically, and the meaning of the word relied on by the hyperbole is just M-W's sense 1. To see this, remove the word "literally" from such a senten
100.
by voidmain 5y ago
They are wrong. Native speakers just don't use definition 2 in a literal way. Maybe this usage will evolve (now that the dictionaries are wrong) but it doesn't explain any of the common usage.
101.
by voidmain 5y ago
Sean Hou's answer in that Quora thread is the correct one. The word "literally" never means "figuratively" or "hyperbolically", but it can (like any other word) be used figuratively or hyperbolically.
102.
by voidmain 5y ago
Consider thinking of index maintenance as part of your storage mapping layer. Basically you have redundant storage plans for the same schema. There is nothing particularly special about primary row indexes - that is just one physical repres
103.
by voidmain 5y ago
This looks really cool! Perhaps you should show some nontrivial examples of (read) queries in RefineASM. Also, what are your plans (if any) for non primary indexing? Storage plans seem like a good fit, but will you transform RefineASM to ma
104.
by voidmain 5y ago
This seems less concerning than the fact that iCloud backup is not end-to-end encrypted in the first place.
105.
by voidmain 5y ago
It's not a very good analysis. The only reason there isn't a good OLTP SQL engine on top of FDB is that no one has invested the considerable resources and expertise to build one. The FDB SQL Layer was on its way, but Apple priorit
106.
by voidmain 6y ago
Apple has a publicly documented solution for Keychain involving HSMs, which I think makes decent default tradeoffs between recoverability and security. And of course they could, and once did for local backups, offer an opt-in unrecoverable
107.
by voidmain 6y ago
Modern particulate filters are pleated: you take a thin filter material that is effective at blocking particles but hard to get air through, and then fold a bunch of it up in a small space to increase the surface area and decrease the press
108.
by voidmain 6y ago
> Spectre V1 (speculative bounds check bypass / type confusion) is basically game over for intra-process memory isolation without introducing expensive or complicated mitigations Code which is executed deterministically cannot recei
109.
by voidmain 7y ago
This story has been repeated a lot but (I am pretty sure) doesn't make sense. It's true that the difference between good health care and totally overloaded hospitals could be a factor of two or more in the CFR. But the difference
110.
by voidmain 7y ago
I'm no industrial chemist, but from a glance at the chemical formula [1], I'm going to guess that it could be produced by the trainload (provided that you shoot the FDA first, which we should have done on the first day of the epid
111.
by voidmain 7y ago
At an R0 of 2, with no interventions, eventually half the population has had the virus and (hopefully) gained immunity. Now each person only spreads it to 1 other person, because the other person they would have infected is immune. (If R0 w
112.
by voidmain 7y ago
This touches on another hobby horse of mine. Our society, both legally and as a matter of cultural habit, tends to prefer inaction to imperfect action. The fallacy, a sort of dual to the better known "We must do something, this is some
113.
by voidmain 7y ago
I think that approach is exactly why contact tracing didn't work. A virus that spreads as contagiously and stealthily as this one means that contract tracing alone is not able to achieve Re<1. Eventually (in the case of Washington
114.
by voidmain 7y ago
Even if the whole world was in sync, you more or less have to hold Re below 1 forever or accept that 1-1/Re of everyone gets the virus. That's basically a tautology. But Re can be affected a lot by testing and tracing when the inf
115.
by voidmain 7y ago
Also... I hesitate to say this because it smells of ad hominem, but in this view the enormous cost of extreme shutdowns is mostly the cost of a mulligan for poor decision making and actions early in the crisis. This may make this view less
116.
by voidmain 7y ago
We know that sufficiently strong social distancing - and universal mask use - can reduce Re below 1, causing the epidemic to shrink exponentially instead of growing exponentially. Once it is small enough, good testing and contact tracing sh
117.
by voidmain 7y ago
Someone should look at Sterilray and Ushio 222nm KrCl excimer lamps. Light at that frequency is extremely effective at destroying viruses but probably does not cause much skin cancer or eye damage like other UV because it is absorbed so fas
118.
by voidmain 7y ago
In fact, at least one study has found plain old surgical masks noninferior to N95 masks for preventing infection by flu (others have found them a little worse, and that's probably the smart way to bet). Common sense suggests that anyth
119.
by voidmain 7y ago
Realtime PCR isn't sequencing. It increases the concentration of the targeted sequence exponentially, so it "should" take only logarithmically more temperature cycles to handle a smaller concentration of virus . If that is ac
120.
by voidmain 7y ago
Why can't RT-PCR tests be used to detect virus in a sample mixed from a large number of individual samples? This would enable cheap and accurate mass testing, since you can find P positives from S samples with O(P*log(S/P)) tests.

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