... if "sterile neutrions" cannot interact with matter, how could one measure them? And if the experiment shows no interaction, how would you distiguish "sterile neutrions exist but don't interact" from "sterile neutrinos don't exist"?

The article leaves a bunch of questions unanswered.

Jeff Bezos (at ~$200 bn) "could afford" "an ISS" at ~$150 bn.

Though, Elon Musk, at $300 bn, could afford two.

Amen.

Slashdot filtered out my nice squares, making m^2 and km^2 just m and km. Grmph...

Surface area of the earth: 510 065 000 km (all, including seas)
Number of people on the planet: 7.9 billion
Avg size of a bed: 2x1 m (adjust as you wish)

Bed area ~7.9*2 billion m or ~15800 km (if one bed per person)

If meteorites are uniformly distributed over the Earth (probably not), then the probability of a given meteorite hits a bed is:

P(bed hit) = 15800 / 510 065 000 = ~3.1E-5 = ~1 / 32000

So one meteroite in 32000 would end up in someone's bed.

However, not all meteorites would be big enough to punch through the roof, and most meteorites are in fact dust-sized.

This reference, http://curious.astro.cornell.e..., claims that between 18 000 and 84 0000 meteorites larger than 10 grams hit the earth every year.

So, if everybody would sleep outdoors, someone ending up with an at least pea-sized meteorite in their bed would be a yearly event or so.

One in 100 billion. Sheesh.

Crystalline silicon has a lattice constant (="distance between atoms") of 5.43Å, or 0.543 nm.
So, if "1nm process" would indicate some kind of physical size on the die, it could not stretch of more than 1/0.543 =1.84 atoms.

From a quantum perspective, such a small distance would pose no significant barrier for electrons. They would easily tunnel through that, so "1 nm" is meaningless as a physical description.

As stated elsewhere in the comments here, the transistor density is a much more reliable metric. IBMs "2 nm" process claims to pack 333 million transistors into a single square mm. That would imply that the average size of a transistor would be 1 mm^2 / 333e6 = 3003 nm^2, or about 55 nm in side (or ~102 Si atoms) if square.

Thus, the "x nm process" is thus not a useful concept outside marketing.

Well, if evolution plays by the same rules across the galaxy, who'd be at a survival advantage, the one traveling between stars, or the one struggling to make a one light-second jump?

The Partial Nuclear Test Ban Treaty (PNTBT) was supposed to be superseded by the Comprehensive Nuclear Test Ban Treaty (CNTBT), banning all nuclear tests, not just the atmospheric ones. Countries not signing CNTBT, but had signed PNTBT are still bound by PNTBT.

The CNTBT was signed in 1996, by 170 states, but it is not in effect since some countries have chosen to not ratify it (China, Egypt, India, Iran, Israel, North Korea, Pakistan and United States). Both France and Russia signed and ratified CNTBT.

It would be interesting to hear an expert opinion on where this leaves the PNTBT status in legal terms: does this 'superseded but replacement not in effect' status of PNTBT make it legal for some or all states to perform atmospheric tests?

Well, the Partial Nuclear Test Ban Treaty (https://en.wikipedia.org/wiki/Partial_Nuclear_Test_Ban_Treaty) were signed in August 1963 by no less than 126 countries, but France (and China, and North Korea) were not among them, and has, AFAIK, still not done so.

We can only hope that it wont require too many light years.

I would expect that most years out there would be dark.

... one astronomical unit.

I somehow doubt that either of them actually have read all these books. At least not completely.

Elon might be interested to do so, if he had the time, but running a bunch of high-profile companies and start-ups (to the level where is sleeping on factory floor, as rumoured), I doubt that he can prioritize the activity of reading books very frequently, as each might require many hours. It might be hard to justify the (percieved) alternative cost in a world time optimized down to minutes.

What I can believe is that Elon browses a book and discusses it with someone who has read it to build an opinion, during e.g. transportation.

As for Mr. Zuckerberg, and don't think he has the time, nor the interest to do so.

Does this not violate the 1967 "Outer Space Treaty" that emphasizes peaceful co-existence in outer space, signed by the US and other nations?

No, it does not. To quote Wikipedia: "The Outer Space Treaty does not ban military activities within space, military space forces, or the weaponization of space, with the exception of the placement of weapons of mass destruction in space."

Microsoft thought the disk footprint was too large, and immediately thought of the registry backup as a major culprit? Decided to disable the feature, leaving people without backups and without telling them? Giving the impression that backup-files exist by generating them, but zero-sized? Didn't bother to properly disable the feature by refactoring the function?

That's five errors in one line of thought. Impressive.