crdrost

109 ms·

631.
by crdrost 6y ago
So they do—they just don’t remain there, they get kicked back up. What is at stake is that you carry a subtle contradiction in your head, assuming you got some pieces of wisdom from your physics classes but not others. One side of this is t
632.
by crdrost 6y ago
Speaking with my physics hat on I have to caution against this -- I wouldn't call it entropy, and I am very happy abusing that word in a variety of other contexts. (Like at church I will call Satan entropy.) But the reason I'd bal
633.
by crdrost 6y ago
There is a different mathematical justification as well in terms of Bayesian reasoning. The claim is that “evidence” in Bayesian reasoning naturally acts upon the log-odds, mapping prior log-odds to posterior log-odds additively. To see thi
634.
by crdrost 6y ago
He mentions that that is another way to do it, the problem is you use dry ice to generate the CO2 and he doesn't know where to find that. I imagine that this process is not very simple; of course the dry ice goes on top and the cool ca
635.
by crdrost 6y ago
So, uh, general relativity makes all of this stuff really complicated. First off, the gravitational energy is not a direct component in the stress-energy tensor that serves as a "source" for gravitational curvature. So it is forma
636.
by crdrost 6y ago
Well, that depends on what you take to be the defining novelty of the equivalence principle, no? So there are other forces that scale like the mass, most notably fictitious forces -- like centrifugal and Coriolis forces. Indeed one way to d
637.
by crdrost 6y ago
I don't think this is downvote-worthy, even if it is something of a personal opinion. Heck, half of what transpires for discourse on HN technical topics boils down to personal opinion. On days when I am being cynical, I think that the
638.
Damaging Proposed Immigration Proclamation on Non-Immigrant Visa Holders(immigration.net)
1 points by crdrost 6y ago|0 comments
639.
by crdrost 6y ago
There's a great manufacturing-management book that regrettably speaks to a manufacturing context and not a project context and therefore applying it literally to our software projects would be a fallacy, called “The Goal”—and then the
640.
New Model of Evolution Finally Reveals How Cooperation Evolves (2017)(technologyreview.com)
3 points by crdrost 6y ago|0 comments
641.
by crdrost 6y ago
I mean there are a lot of resources but they are at a very high level. I don't think much has changed. The basic idea is that with Tor, you make HTTPS connections to the "tor relay", a network of volunteers who route your tra
642.
by crdrost 6y ago
You're assuming the disease is an absence of character; it is not. The present US system is split-everything-into-districts then winner-take-all-in-each-district. This system is known to have a mathematical fixed point (as a transforma
643.
by crdrost 6y ago
I mean in his defense, DJB has some serious chops that others have lacked, including writing what was at one point the most popular DNS server for anyone who cared about security as well as the first MTA which cared about security while tra
644.
by crdrost 6y ago
Hashcash is a different idea with the same goal of making certain email behaviors financially infeasible by tying emails to a more limited resource. The limited resource in IM2000 is -- well, that's complicated, I would say internet do
645.
by crdrost 6y ago
The real question is why you would want to. You have a lot of other options! For example, on 576 byte messages on a core i7, eBASH reports the following performance characteristics: - Blake2b (~20% faster) - SHA-384/192 and SHA-512&#x2
646.
by crdrost 6y ago
PSA that there was a sort of "email 2.0" spec called "Internet Mail 2000" (which gives you an idea of how long ago this was, heh) by djb, that would have partly eliminated all this crap. The idea is that you can pay the
647.
by crdrost 6y ago
I don't think there are "multiple lines", just that you can have quite large HTTP headers and this one happens to contain a comma followed by a space, which the text view is using to word-wrap. See e.g. https://web
648.
by crdrost 6y ago
Some parts are really engaging. That one is finally using arms and hands and posture and rotations—not mere button presses—to manipulate a virtual world makes that world much more intimate. Simply the freedom to move your attention around t
649.
by crdrost 6y ago
You are getting close! It is both. So here the LSP violation being described is that a function which handles a Rectangle it is given properly (i.e. it does not construct it) might fail when given a subclass of Rectangle, precisely due to
650.
by crdrost 6y ago
Basically rmem - size was the number of bytes that were consumed before this current packet. In the line before, we have thread-atomically added size to rmem immediately prior and read the current value in one single step. Call this "s
651.
by crdrost 6y ago
Look at it a different way: why is our domain model hard to change? Is it, I suspect, mostly because we failed DRY and repeated ourselves at the various layers? (i.e. our domain model is echoed in our DB, Redis cache, API structure, App str
652.
by crdrost 6y ago
Oh man, Stephen, you're gonna get a lot of conflicting views on this one, posting it here. :) For what it's worth I am on your side given a bunch of constraints that match my prior experience. So I have typically worked on small s
653.
by crdrost 6y ago
So an eigenvector is a special direction which most linear transformations have. If you ask them to transform a vector in that direction, they do not rotate that direction to some other direction, they only scale it by a constant called the
654.
by crdrost 6y ago
It's correct but jargony. So in the category of sets there is a notion of product between two sets called the Cartesian product, and one can do a couple things to endow this product with an identity element, for example one might use {
655.
by crdrost 6y ago
So I like this outline. It is very MIT-ish where there is a sense of teaching someone to solve practical engineering problems with matrices. But, I do foresee some difficulties. One thing that I find really difficult, for example, is that I
656.
by crdrost 6y ago
MS may indeed be willing to take a "huge loss" on this. It may dwarf the added revenue from other sources. So like I don't know your particular context but I imagine MS's moves would seem surprising for developers, say,
657.
by crdrost 6y ago
Indeed my loudest prescription to people doing service-oriented architectures of any kind is to simplify these arrows. The common mistakes that I see are for two services to share read access to a common database, or to discover each other
658.
by crdrost 7y ago
You don't have to track their emails unless you are reusing emails as usernames. Just tracking the username suffices. This is also one of those situations where people often put too much shit in the user table. "we have to delete
659.
by crdrost 7y ago
That can't be true for the official confirmed numbers. Like, it was for a while impossible to get a test if you are not experiencing multiple symptoms AND can make a case that you might have been exposed via interacting with someone wh
660.
by crdrost 7y ago
Possibly because JS did that (it has been a thing since Self I think? Or maybe that was just the prototypal inheritance—I never can remember) and the confusion between the symbolic properties and the key properties kept coming up. Like,

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