Genady

As sure as the Sun will set tonight.

Past Performance Is Not Indicative Of Future Results (forbes.com) Mathematics explains perfectly, to my taste, why there are infinitely many prime numbers. Explains, not just describes. It gives me the machinery that makes this set infinite. There are different 'why's. In animal behavior specifically, there are at least these standard four: Tinbergen's four questions - Wikipedia

As @studiot's counterexamples show, these conditions are neither sufficient, nor necessary.

Yes. Is it true though that all these wormholes and time cycles require sorts of exotic materials about existence of which GR has nothing to say?

Like this: the Sun will become a red giant, then it will blow most of its material away, then it will become a white dwarf and will stay in that form for many billions of years.

In my case, I knew too well where it is. That made me answer incorrectly.

It does not follow from this, that "with speculation, there is a good and original observation." It does not follow from this, that "with a bold conjecture, a great discovery will be made."

I've answered that one correctly, because I don't know much about formal grammar. So, I thought about the term, preposition. It has position in it. Aha, said I, it has something to do with space and time.

No, they will not. Each one will live 80 years in their own time, technically called 'proper time'. If they mind their own business instead of comparing to other people times, they don't experience anything unusual.

Mathematics IS machinery, but a tricky one. It does not show why the things are the way they are. Instead, it shows why they could not be different.

@studiot St. Petersburg is 300 E and should've been 2 hours ahead of GMT if they went by 150 longitude. That was my answer on the quiz, 2 o'clock. Wrong! Their answer was 3 o'clock. It's neither time zone, nor astronomical difference. Did you notice your misattribution of the quote above?

This quote is not from me:

Did I say something about parallels?

edit: x-posted with John Cuthber

I wonder what time they referred to in 1859. The worldwide hourly time zones were established much later.

I know a lot of history. Perhaps, of different parts of the world. (Domesday Book - Wikipedia)

They will agree on the age of the universe in comoving reference frame.

I've missed St.Petersburg time by one hour, and never heard of Doomsday Book.

Yes, it started early, but is there any estimate of how many of them were needed / how long did it take to accumulate significant amount of heavy elements throughout the universe?

I'd like to add that we are not latecomers to the game, considering that we evolved on a planet that exists about a third of the age of the Universe, and considering that the chemical content of the Universe was poor most of the time before that.

Ah, I see. No, I don't see an obsession with the pursuit of GAI. Unlikely but plausible. About 1/millions chance. The same as any other intelligent civilization. It becomes an anthropocentrism only if one believes in it, not by suggesting it as a plausible possibility.

Please, explain.

Maybe. IDK. We are not closer to GAI now than we were 50 years ago. The recent advancement in AI is tangential to that direction.

This is right. However, I don't see what the place of GAI in this threat is specifically. Any terrorist organization can do something like this.