mrb

128 ms·

691.
by mrb 7y ago
Not necessarily. I used to always buy genuine HP cartridges, sold by Amazon (not a third-party seller,) with official packaging, non-tampered unbroken sticker on the box, and yet one day my printer reported a cartridge as "non-genuine&
692.
by mrb 7y ago
Faster is always a good thing for a hashing primitive. For hashing passwords, you should not directly use a hashing primitive but instead stretch/iterate it through a higher-level algorithm, such as Argon2, that will (1) slow it do
693.
by mrb 7y ago
This passage applies so perfectly to obsessed supporters of political candidates, especially in the Trump era (no matter what side): « A fanboy is obsessive and uncritical. Liking you becomes part of their identity, and they create an image
694.
by mrb 7y ago
Here is what a 6070 km² square looks like: https://i.imgur.com/kEFBxZg.jpg
695.
by mrb 7y ago
I did not say that it was possible to live using Bitcoin in Iran. Read my comment again.
696.
by mrb 7y ago
You don't get it. The full benefits of Bitcoin are realized when you stay in the system. Receive BTC. Spend BTC. Avoid converting to fiat ("real money") when possible. As adoption increases[1] year-over-year it becomes increa
697.
by mrb 7y ago
This sort of financial censorship is a textbook example of a problem perfectly solved by Bitcoin-class cryptocurrencies. A censorship-resistant digital currency may not be useful to you personally, but it's painfully obvious there ar
698.
by mrb 7y ago
Grossly incorrect stats you gave here... There is only $6 million in capacity, not $6 billion. Daily transactions are more likely in the few hundreds per day, not tens of thousands. Although this can't be determined with accuracy.
699.
by mrb 7y ago
For a fair comparison (fp64 vs fp64): « A single GPU card like the AMD Radeon MI60 has more computing power than year 2000 supercomputer ASCI Red (fastest supercomputer in the TOP500 list of June 2000): • MI60: 7.4 TFLOPS (FP64) • ASCI Red:
700.
by mrb 7y ago
« A small team of engineers can displace thousands or tens of thousands of workers without creating any new opportunities. » A corporation that did that would have significantly increased its profits, and this new wealth is often (not alway
701.
by mrb 7y ago
I'm reminded of a story from a HN commenter who was a US soldier. He said in his unit he's been trained and tasked with cleaning rifles with brushes, rags, (no gloves) and an unlabelled liquid cleaning product. After years of doin
702.
by mrb 7y ago
They get a 882x speedup because hashcat's heavily optimized implementation of luks1 (aes, cbc-essiv:sha256, sha1) on a R9 290x GPU really is 882x faster than cryptsetup's ordinary implementation of this algo which runs on a single
703.
by mrb 7y ago
Actually LUKS uses 1 second of iterations, last time I checked, and according to the code: https://gitlab.com/cryptsetup/cryptsetup/blob/master/lib/lib...
704.
by mrb 7y ago
« This is trivial to work out in AWS, » Is it, really? Last time I checked, AWS charges separately for network traffic, so unless you know exactly how much traffic you will serve over the next 12 months, you can't know how much it will
705.
by mrb 7y ago
I've been working in crypto for 10 years (well, the only "crypto" that existed back then was Bitcoin) and I agree with zelly's criticism. Another simple flaw of Kong is that when I receive a Kong note, someone could have
706.
by mrb 7y ago
Not totally true. As I pointed out in previous HN threads, there is a lot of power used by miners that would otherwise be unused. In the Chinese regions of Yunan and Sichuan, there is such an overcapacity of hydropower that dams are forced
707.
by mrb 7y ago
Interesting, thanks.
708.
by mrb 7y ago
« DuckDuckGo and other services that just package up Bing search results » Had to look that up. I found https://help.duckduckgo.com/results/sources/ Bing is just one of "hundreds of vertical sources deliverin
709.
by mrb 7y ago
Indeed. Back in 1999 the AMD K7 was a full 3 times faster than Intel on microbenchmarks measuring the performance of ROR/ROL instructions, because the throughput per clock of these rotate instructions was exactly 3 times higher than
710.
by mrb 7y ago
Why do you care? You like the address bar to show the original domain name? What if this UX problem was solved by the address bar always showing the original URL, regardless of whether the content was loaded from an AMP cache or not?
711.
by mrb 7y ago
Bing also caches AMP content: https://blogs.bing.com/Webmaster-Blog/September-2018/Introdu... I agree that there is a UX problem to solve (the address bar should show the original URL, copying it should preserve t
712.
by mrb 7y ago
But anybody (Bing, Yahoo, etc) can "insert themselves in the URL" if they decide to cache the AMP content. In fact they could also cache non-AMP pages if they wanted. This isn't a problem created by AMP in and of itself. Yo
713.
by mrb 7y ago
« the entire AMP approach to doing this is questionable » Why? AMP is roughly speaking a subset of HTML that's somewhat easier to cache, and nothing more. Ideally it should be possible and encouraged to serve most webpages from a cache
714.
by mrb 7y ago
Oops I wrote 60Hz but meant 120Hz.
715.
by mrb 7y ago
Same experience here. I film all the led bulbs I purchase in 240fps to see if they flicker at 60Hz. I discovered that Philips bulbs NEVER flicker. Occasionally I stumble upon other cheaper brands that don't flicker, but there is never
716.
by mrb 7y ago
Surely you meant x87 FP instructions? The 486 didn't have SSE instructions.
717.
by mrb 7y ago
The demographics of Japan, specifically an aging population and declining birth rate, is unfortunately where ALL modern countries are headed. Anyone who studies demographics knows this (in my part of the world we learn this in middle school
718.
by mrb 7y ago
Looking at your chart, rb808's claim is correct even as of the latest numbers. UK at $39720 and Japan at $38428 is "virtually identical".
719.
by mrb 7y ago
So out of the five RIRs: - APNIC ran out - ARIN ran out - RIPE NCC just ran out - AfriNIC is expected to run out in 2020 - LACNIC is expected to run out in May 2020 https://www.lacnic.net/1039/1/lacnic/ipv4-de
720.
by mrb 7y ago
« There is still no actual and relevant use case for crypto » What a short-sighted view. Perhaps no use case for you personally. There are 7.7 billion people in this world who have vastly different life circumstances, some of them certain

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