mbauman

6 ms·

31.
by mbauman 2y ago
> We know an optimally dense packing for 2D spheres We do? I think this is the latest state of the research here — only 14 Ns are proven optimal and it's certainly nowhere close to a general algorithm: http://hydra.nat.un
32.
by mbauman 2y ago
$20/hr fulltime is ~40k/yr or ~$3300/mo. As just one benchmark: can you find housing in your area for $1100/mo?
33.
by mbauman 2y ago
GOOG411 was actually very helpful in the dumbphone/limited-cell-data era! I'm not sure why I'd use this now. It also brings back memories of trying random (and known) 800 numbers from payphones.
34.
by mbauman 2y ago
Words and names are powerful — this is something that I've found over and over again as a programmer. If you can find the right name for something, then the abstractions immediately become clear. This isn't unique to programming
35.
by mbauman 2y ago
My only regret is not making it even more explicit!
36.
by mbauman 2y ago
Sure should be. But Krebs’ story on it is proof it can happen. Story: https://krebsonsecurity.com/2024/01/canadian-man-stuck-in-tr... HN discussion: https://news.ycombinator.com/item?id=39056733
37.
by mbauman 2y ago
The most valuable "metadata" in this context is typically with whom you're communicating/collaborating and when and from where . It's so valuable it should just be called data.
38.
by mbauman 2y ago
Atavising was new to me. From https://nbickford.wordpress.com/2012/04/15/reversing-the-gam... : > First of all, while I said “Predecessorifier” in the talk, “Ataviser” seems to be the accepted word, coming
39.
by mbauman 2y ago
> The seemingly high occurence of rare events is an artifact of how much we're measuring. If you have a thousand weather stations, every year you'll see a "thousand year" event at one of them. We just didn't noti
40.
by mbauman 2y ago
This is utterly terrifying: > ... three-day totals that were well above 20 inches at multiple stations. For context, a three-day-long precipitation event in Asheville, N.C., the largest city in the most-affected region, is considered to
41.
by mbauman 2y ago
So where is the even split point? It's [0, 1.5) and [1.5, Inf)! There's `2^62-2^51-1` values in both those sets. Or `2^30-2^22-1` for 32 bit. Or perhaps even more interestingly, there's the same number — 2^62 or 2^30 — in
42.
by mbauman 2y ago
But perhaps that's the interesting point — 1/x is *cannot be* an exact bijection for floating point numbers, because there's not a one-to-one mapping between the two sets.
43.
by mbauman 2y ago
> floating point without can represent two numbers whose difference is smaller than the number can represent and rounds to zero Did you intend to say "without FTZ/DAZ enabled"? If so, that's completely and provenly f
44.
by mbauman 2y ago
That’s precisely the misapprehension that makes folks think that -ffast-math is fine. Each and every floating point number is an exact quantity. They are real mathematical objects that identify exact values. They just have limited precisi
45.
by mbauman 2y ago
I think the biggest thing is that programmers can safely assume that a floating point `x-y` is nonzero if `x != y`. You can actually go farther and know that it's an exact computation (with no error ) if the two are close [1]. But
46.
by mbauman 2y ago
fp contract isn't a uniform "decrease in error" either, though. As a simple example, it introduces error in the straightforward: a*b - a*b
47.
by mbauman 2y ago
In the case of flushing subnormals to zero, it's easy to end up with divides by zero when it wouldn't otherwise. `0/0.0` is `NaN` but `0/subnormal` is `Inf`. In other cases, `-ffast-math` just introduces arbitrary and s
48.
by mbauman 2y ago
Ironically, so many of these users are those _with corporate support_. And demanding "IT" support from the open source project. Without consideration.
49.
by mbauman 3y ago
We know there's long-cons in action here, though. This PR needn't be the exploit. It needn't be anywhere _temporally_ close to the exploit. It could just be laying groundwork for later pull requests by potentially differen
50.
by mbauman 3y ago
Is it even possible to have a video transcript whose copyright has expired in the USA? I suppose maybe https://en.wikipedia.org/wiki/The_Jazz_Singer might be one such work... but most talkies are post 1929. I suppose
51.
by mbauman 3y ago
Be prepared for day-of eclipse traffic, too!
52.
by mbauman 3y ago
Aha, of course! OK, if those are nautical miles this does make much more sense — 3698nm is 280 nautical miles (320 miles) longer than the great circle route. It's a bit longer than the naive calculation I made — increasing the average
53.
by mbauman 3y ago
What _was_ the routing and speed? That was my very first question and the blog post doesn't really answer it. How much of the flight was supersonic? They talk about avoiding India for the BAH-SIN leg, and trouble over Saudi Arabia, b
54.
by mbauman 3y ago
Yeah, that's not at all what the actual journal article claimed. It starts super simple: We know Titan has two things that seem so promising for life as we know it! Organic compounds on the outside, liquid water on the inside. And then
55.
A short story about the "gotofail" bug(infosec.exchange)
4 points by mbauman 3y ago|0 comments
56.
by mbauman 3y ago
It's always very fun when you realize something you learned very early by rote (like an alphabet) actually has a clear meaning you should've long been able to understand, had you thought about it.
57.
by mbauman 3y ago
What remained of the charging cable was not much of a cable — it was barely the connector that remained. https://nitter.net/SeanSafyre/status/1744247194448961725#m
58.
by mbauman 3y ago
This isn't much more than the original twitter post: https://nitter.net/SeanSafyre/status/1744138937239822685 The most astonishing thing to me is the destroyed charger cable. Also a good reminder that it&#x27
59.
by mbauman 3y ago
That website is in desperate need of an about page that doesn’t presume you know what illumos is. The wiki is slightly better: https://en.m.wikipedia.org/wiki/OpenIndiana
60.
by mbauman 3y ago
> I have in the past suggested that the fact that the MDC has remained unbroken for 20+ years is evidence that it is secure. This seems like... not a great stance to take on post about a vulnerability that existed for 20+ years. I don&#x

More ›