rocqua

58 ms·

841.
by rocqua 4y ago
What death risk are you talking about? Seems like an interesting anecdote.
842.
by rocqua 4y ago
How much delay is acceptable for a 0.001% point yearly mortality reduction on a busy rail line? Certainly not an hour. So there is some tradeof. Notably the lives OP was talking about included his own. I think that matters quite a bit. Risk
843.
by rocqua 4y ago
My sense is that "we need 99.9% uptime so solutions that require maintenance downtime are not acceptable" even though the lack of solutions is a bigger drag on uptime. But if your mandate is uptime, voluntary downtime is not at al
844.
by rocqua 4y ago
From the article: Unfortunately, thanks to a combination of poor design choices and poor upkeep, many of these speedometers have proven to be wildly unreliable. So, as train crews navigated the increasingly speed-controlled subway of the au
845.
by rocqua 4y ago
With result/either you are forced to handle the error very close to where it happend. With exceptions (in my understanding) the goal is to be able to handle errors much further up the stack. But in such cases you aren't sure where
846.
by rocqua 4y ago
You can build a separate exception for every possible raise site. But that is overly burdensome. Moreover, there is no guarantee that any (standard) library calls have an appropriately detailed taxonomy. You could, of course, wrap these lib
847.
by rocqua 4y ago
Exceptions work well for 2 kinds of error handling: crash and log, and general retry and log. The second one is more cumbersome with return values if the possible errors originate deep in the stack. Beyond a simple retry, Exceptions are not
848.
by rocqua 4y ago
> None of the industrial uses of fluoropolymers can cause significant pollution. However using them in things like kitchenware, or worse, in packaging, makes no sense. I presume it is possible for these industrial uses to cause significa
849.
by rocqua 4y ago
If we can just keep existing PFAS out of our drinking water, and stop PFAS production, it's a massive improvement over the status quo. We'll stil get it from food that uses untreated water to grow, and the wider environment still
850.
by rocqua 4y ago
Leeching makes a comeback.
851.
by rocqua 4y ago
Without DNSSEC this requires an attacker to 'global MITM' letsencrypt's DNS queries. That is a higher bar than before this change. Before, an attacker only needed to 'global MITM' http requests. Your ISP could trivi
852.
by rocqua 4y ago
A suggestion to look into something, with links to start the research, on a forum like this. Totally fine. People can do their own research on this forum, if someone is on special meds, they are smart enough to check with doctor before impl
853.
by rocqua 4y ago
Dark pools mean that public market prices aren't as accurate. The story of financial markets being valuable to wider society is, among other things, price discovery. Dark pools don't serve that purpose. Moreover, the PFOF story de
854.
by rocqua 4y ago
PFOF is not a problem, except that it hurts your pension funds. PFOF needs to be price improvement. Research has been done and it _does_ give price improvement. The main point of PFOF is that high frequency traders have much less risk when
855.
by rocqua 4y ago
Humans (or at least I) have the ability to look up knowledge. What about an architecture where the main model has a background conversation with a knowledge model, just like I need to look up things I remember exist, but forget details off.
856.
by rocqua 4y ago
Products better have sn answer to that question, and that answer tends to be very informative.
857.
by rocqua 4y ago
All of the below is according to theory, not claiming it to be true. Because DM passes right through itself it doesn't clump like the stuff that made our planets do. Instead it remains spread out bound by gravity but not clumping. That
858.
by rocqua 4y ago
So many floppies were damaged by magnets that almost all people still remember "magnets and floppies do not mix". That was a hard-learned lesson for many people.
859.
by rocqua 4y ago
> I wonder if the Netherlands would be a good place to experiment with the libertarian approach of just legalizing everything. No, for two reasons. First the political climate here is turning against legalization. We are pushing back on
860.
by rocqua 4y ago
I'm Dutch, and I am upset we have gotten close to a narco state. It's still nowhere close to true that drug dealers are being elected at the national level here, nor are national politicians clearly being pressured by drug dealers
861.
by rocqua 4y ago
Wikipedia is rarely a good introduction for laymen. It tends to be a great reference for people already in the field.
862.
by rocqua 4y ago
Because it is the only evidence that is presented, and lay-people can easily come up with objections. These people then express their frustration or confusion why some of these objections seem completely unaddressed. These people are effect
863.
by rocqua 4y ago
This seems like a very nicely detailed response to OPs question. Thanks! Your response brought up some questions and remarks from myself. > DM can be falsified perfectly well. I recall hearing that DM was attempted to be falsified based
864.
by rocqua 4y ago
I vaguely recall hearing that there are galaxies "without any dark-matter". Or, more accurately, galaxies whose rotational speed is consistent with general relativity without needing to presume dark matter exists in those galaxies
865.
by rocqua 4y ago
I very much agree with you, and have raised these questions before. I got some interesting responses that half-mollified my worries. Originally dark matter was hypothesized because of galaxy rotation mismatches. This allows for mapping wher
866.
by rocqua 4y ago
From what I remember the main problem is code requirements around being able to go from 'isolated' back to being connected to the grid. If you are out of phase when the grid gets back, it gets damaging. So it is difficult to get a
867.
by rocqua 4y ago
The problem isn't accuracy. It's not generally important to hold perfect frequency. The importance is in coordination. If the grid frequency lags a little bit, then other plants should also lag, to prevent being out of phase.
868.
by rocqua 4y ago
A perfect frequency can be kept easily, but it wouldn't remain synchronized with the rest of the grid. You could try to drag the grid to a perfect frequency by lagging or leading the pattern. But that feels like it wouldn't work.
869.
by rocqua 4y ago
That works for stabilizing power levels. It doesn't do much for stabilizing the frequency of the grid.
870.
by rocqua 4y ago
Your final +1 is not in the expression by OP. You can get it by taking the correction term (x & y & 1) as mentioned in another comment.

More ›