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Comment Re:10,000,000 trillion (Score 5, Insightful) 192

To NASA's credit there is nothing in the cited study that mentions anything about the value of the asteroid's metals, about mining at all, or even about this being a discovery. It's just an article about the asteroid's composition. It doesn't take any involvement from NASA at all for a "news" site to realize that they can turn valid interesting scientific observations into a sensationalist click bait headline and make some ad revenue.

NASA did some real science. Some parasitic news writers did some bad math and turned it into ad revenue.

Comment Big Numbers are Hard (Score 1) 192

"$10,000 quadrillion ($10,000,000,000,000,000,000), or about 10,000 times the global economy as of 2019"

In additional to all the valid points about a) it's too expensive to bring to earth and b) even if you could bring it to earth cheaply, the resource price would plummet due to massive supply increase. The math in this sentence is also just wrong.

The world GDP in 2019 was around $88 Trillion. https://data.worldbank.org/ind...
$10 Quintillion = $10,000 Quadrillion = $10,000,000 Trillion.
10,000 x World GDP = $800,000 Trillion

Comment Miniscule improvement, is it actually interesting? (Score 1) 72

"they were only able to subtract 0.2 billionth of a trillionth of a trillionth of a percent"

So why exactly is such a miniscule improvement actually interesting? They handwave over the very small improvement by saying "computer scientists hope this breakthrough will inspire rapid further progress" and "Yet this minuscule improvement breaks through both a theoretical logjam and a psychological one. Researchers hope that it will open the floodgates to further improvements."

But why do they hope that? It's cool that there is ongoing work on different approaches but it's hard to understand why such a small improvement is really cause for excitement/optimism. Is this just Computer Science Clickbait?

Comment Re:This is an unusual usage (Score 1) 9

Digging through references it's still not at all clear to me what the boundaries of the sandbox are. Is it a technical space like a special network walled off from the open internet only accessible to approved participants? Or is it some kind of abstract "legal space" in which companies can choose to operate so that a different set of more flexible specialized regulators are assigned to them and liability is limited? Will the crypto activities that happen in the "sandbox" be real actual financial transactions or simulated ones?

Pan-European blockchain regulatory sandbox
A sandbox is a facility that brings together regulators, companies, and tech experts to test innovative solutions and identify obstacles that arise in deploying them. The European Blockchain Partnership is planning a pan-European regulatory sandbox in cooperation with the European Commission for use cases in the EBSI and outside of EBSI, including for data portability, B2B data spaces, smart contracts, and digital identity (Self-Sovereign Identity) in the health, environment, mobility, energy and other key sectors. The sandbox is expected to become operational in 2021/22.
https://ec.europa.eu/digital-s...

The Commission is also proposing today a pilot regime for market infrastructures that wish to try to trade and settle transactions in financial instruments in crypto-asset form. The pilot regime represents a so-called ‘sandbox' approach – or controlled environment – which allows temporary derogations from existing rules so that regulators can gain experience on the use of distributed ledger technology in market infrastructures, while ensuring that they can deal with risks to investor protection, market integrity and financial stability. The intention is to allow companies to test and learn more about how existing rules fare in practice.
https://ec.europa.eu/commissio...

Comment Re:Nobody can brake within 2 seconds for a moron (Score 1) 137

Keep in mind that human eyes have a MUCH broader dynamic range than camera sensors and humans are very good at detecting movement. A human who was paying attention would have had a much higher chance of seeing the person much earlier than what you can see in the video. You can't use the video as an example of what a human would have seen.

Comment Google Wave/Apache Wave (Score 1) 456

This is exactly what Google Wave intended to be - a federated extensible decentralized instant messaging service with enough features to replace the features of every other existing messaging service. Their server/protocol implementation was deeply genius (built on top of XMPP) but unfortunately they were cut off way before the client was particularly practical and before federation could be realized. Had Google given Wave a decade to evolve I think it could have solved this problem - but there was no profit in solving this problem and early adopters struggled to figure out how the very rough (but innovative) client fit into their lives.

No company will ever build something as decentralized as SMTP or IRC because the business model of the web involves owning the eyes of a set of users. Allowing those users to jump ship to another service provider using the same protocol doesn't help the bottom line of any startup. On the other hand - open source efforts don't seem to be able to get enough developer attention, and I assume it's because developers know that not enough people will use these alternatives if the big players like Facebook/Twitter/Google with the massive user bases aren't going to cooperate. Wave and diaspora* were both innovative attempts to do decentralized versions of currently centralized communication tools but neither ever had sufficient traction among developers and early adopters.

Communications

Ask Slashdot: How Would You Solve the Instant Messaging Problem? 456

Artem Tashkinov writes: The XKCD comics has posted a wonderful and exceptionally relevant post in regard to the today's situation with various instant messaging solutions. E-mail has served us well in the past, however, it's not suitable for any real-time communications involving video and audio. XMPP was a nice idea, however, it has largely failed except for a low number of geeks who stick to it. Nowadays, some people install up to seven instant messengers to be able to keep up with various circles of people. How do you see this situation being resolved?

People desperately need a universal solution which is secure, decentralized, fault tolerant, not attached to your phone number, protects your privacy, supports video and audio chats and sending of files, works behind NATs and other firewalls and has the ability to send offline messages. I believe we need a modern version of SMTP. [How would you solve the instant messaging problem?]

Comment LOGO on Apple II and BASIC on TRS-80 CoCo (Score 1) 515

I was born in 1976. I had logo in I think 4th grade which was the first time I'd ever touched a computer. That summer my grandfather got a TRS-80 color computer and I borrowed/kept my 4th grade math text book. That text book had a BASIC tutorial in the appendices which we had not looked at during class. I used that BASIC tutorial along with a manual that came with the TRS-80 along with some source code print outs from programs that my grandfather wrote (simple programs to help him choose lottery numbers) to learn to write some simple programs. One of my first programs told random jokes. That summer since I had limited access to my grandfather's computer I spent a lot of time writing BASIC programs on napkins at restaurants. A year or two later he gave me that computer and I started making more complex programs. My first ambitious program generated Basic D&D characters, rolling the stats and then suggesting an optimal race and class to go along with the stats. I continued to make that D&D program more and more complex throughout Junior High, adding AD&D rules and adding inventory and spell book parts.

I didn't learn structured programming (with procedures and data structures) until high school when I took a Pascal class at my high school (a math and science boarding school). I taught myself C from the K&R book right after I finished Pascal. I taught myself C++ while taking a C++ class in which the teacher didn't understand the language. The class used C++ in 21 days, but I used Stroustrup. Then I taught myself Perl from the Camel book in high school as well. Whenever I learned a new language I would first work on understanding and modifying example programs and then choose a program I wanted to write as how I would learn. I made programs to build mazes, a web app that was an early kind of forum/blog, and more and more complex AD&D character generators.

I also spent a lot of time in 7th and 8th writing programs for my TI-81 to implement various math formulas we were learning such as a program to do the quadratic formula and to compute other things about parabolas like the location of the focal point and a program to use determinates of matrices to solve systems of equations. The more math tools I learned the more fodder I had for writing programs to implement them.

I found in high school that one of the major obstacles to programming courses was that many kids understood how compiling and linking worked and many didn't. The kids who didn't had a really hard time even getting Hello World to work because the teachers taught the language but didn't teach the tools so the build process was just kind of like a magic incantation rather than a process they understood.

Comment Treadmill desks for posture (Score 2) 134

When I sit, my back and neck hurt because I slouch when I'm concentrating. When I stand, my back and legs hurt because I slouch when I'm concentrating.

On my treadmill desk, I never slouch, it's impossible to slouch while walking but it doesn't hurt concentration. So that's the ideal setting for me.

Instead of a sit-stand, I have an HDMI splitter and a wireless keyboard. Monitor at a sitting desk, monitor at the treadmill desk, they show the same thing, just move between them if I have to sit but I haven't used the sitting desk in months.

Comment Consensus is about confidence (Score 1) 770

Scientific consensus means that the thing has been sufficiently studied and reproduced that the confidence is extremely high. This isn't just about "soft" sciences. This is true even in high energy physics. You gather some data and there's a statistical chance that it was all due to noise in the measurements or coincidence. Other people gather some more data and the chance that the conclusion is incorrect goes down. Lots of people gather more data, and one of them finds a counter example, but then more people gather more data and that counter example fits with the expected error bar. This is the consensus process. It isn't about feelings or opinions or subjective truths. It's about increasing confidence and reducing error to the point where the entire community of researchers is confident the findings are reliable and can be assumed true.

Scientific consensus isn't the same as truth. It's just the best proxy for truth we can have. Scientific consensus about Newton's Laws was wrong - but it was only wrong at then-unmeasurable scales and precision. The consensus was incredibly useful, even though it was slightly wrong, because the conclusions it gave were widely reproducible and produced predictions with very high confidence that other researchers and engineers could rely on.

Scientific consensus about climate change isn't "consensus" because some scientists "convinced" other scientists or because it's too hard to do repeatable experiments. It is consensus because repeated experiments and measurements and analyses have consistently increased the confidence and reduced the noise in the predictions.

Nothing is ever proven true. Things can be proven false. And things can be proven to be more and more and more likely to be true and less and less likely to be false (because we repeatedly fail to prove them false). At some point things are proven to be SO likely to be true that there is consensus that we might as well treat them as true until someone comes up with a paradigm shift (ala Newton -> Einstein).

The quote in this article assumes that there's never an error bar on scientific measurements. There always is.

http://xkcd.com/882/

Microsoft

Microsoft Apologizes For Inserting Naughty Phrase Into Linux Kernel 897

netbuzz writes "Microsoft has apologized and promised to rectify the fact that one of its developers slipped a sexist phrase into Linux kernel code supporting Microsoft's HyperV virtualization environment. In that code, the magic constant passed through to the hypervisor reads '0xB16B00B5,' or a slightly camouflaged 'BIG BOOBS.' After Linux developer/blogger Matthew Garrett criticized Microsoft for the stunt, the predictable debate over sexism in the technology world ensued. Microsoft issued a statement to Network World apologizing and added, 'We have submitted a patch to fix this issue and the change will be published in a future release of the kernel.'"
Space

Missing Matter, Parallel Universes? 154

Phoghat writes "Could mirror universes or parallel worlds account for dark matter — the 'missing' matter in the Universe? In what seems to be mixing of science and science fiction, a new paper by a team of theoretical physicists hypothesizes the existence of mirror particles as a possible candidate for dark matter. An anomaly observed in the behavior of ordinary particles that appear to oscillate in and out of existence could be from a 'hypothetical parallel world consisting of mirror particles,' says a press release from Springer. 'Each neutron would have the ability to transition into its invisible mirror twin, and back, oscillating from one world to the other.'"
Robotics

Boeing Hydrogen Powered Drone First Flight 160

garymortimer writes with news of the test flight of a hydrogen powered UAV. From the article: "Phantom Eye's innovative and environmentally responsible liquid-hydrogen propulsion system will allow the aircraft to stay on station for up to four days while providing persistent monitoring over large areas at a ceiling of up to 65,000 feet, creating only water as a byproduct. The demonstrator, with its 150-foot wingspan, is capable of carrying a 450-pound payload."
Communications

What Would a Post-Email World Look Like? 314

jfruh writes "Pundits have been gleefully predicting the death of email for years, but nobody has really been able to explain what will replace email, especially for the medium's archiving capabilities that businesses and governments have come to rely on. It's possible that email won't vanish, but rather become invisible, one component of an integrated communication stream that will be transparent to users but still present — and useful — under the hood. It may turn out that Google's Wave, which was built on this idea, was just a bit ahead of its time."

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