The first step to surviving somewhere else is locating a somewhere else that is better than trying to live on Earth after it has been hit by an asteroid. Unfortunately Mars fails this test. In fact we could get hit by an asteroid, have a nuclear war, have the worst possible global warming, and living would still be better on Earth than Mars.

Or laundering.

I'm not American, but I know there already is an asteroid defence programme. I was listening to people involved in it on a podcast, Science Friday, the other week. Interesting stuff.

On the 2.5Bn years bit - yes, but don't start don't finish. We have no idea how long it will take to develop the techniques required for this, and there will always be a good reason to put it off until tomorrow. Needs to start and just become so embedded over time that future generations don't even question why we're doing it - it's just patently obvious to them. Won't happen in my lifetime, but then a lot of things won't happen in my lifetime that are getting worked on today and that's fine.

There's often a "we should fix problems on earth before looking to space" theme. We can be as equal, progressive and fair as we like and an asteroid still wouldn't give a damn and wipe us out anyway. Should we survive asteroid attacks, the sun will expand and burn the planet dry anyway.

We have to do both. Defence of the Earth (dramatic phrase, but see subject above...) has to be studied, funded and run. Along side that a long, probably multigenerationally long, programme of "how do we survive when the Earth is uninhabitable" including the ability to leave Earth and live elsewhere. These programmes are fundamental to long term survival of the human race.

I think one of the problems is that it all sounds very dramatic, big and sci-fi. But it isn't - we have direct evidence that the risk already materialised once and wiped out most life. We also have evidence of the expansion of the sun. All these things are certain, so we have to look at them as reality and not fiction.

And Uber drivers are just one group about to be eliminated by technology. The same self-driving will also eliminate tons of truck drivers, though that will probably hold off until people are more used to the idea of self-driving cars on the road. (I would give it one to three years delay.)

We're in for some interesting times.

But Uber will have to build out its fleet of autonomous vehicles.

That's assuming Uber. Tesla is preparing the assembly lines now for the CyberCab, and they could be putting them out at thousands a week by the end of next year. There's a lot to be said for the theory that self driving cars won't be able to handle all weather and all weird roads, but from what I've seen, those are issues that may delay but not stop the self-driving takeover.

Interestingly, I would regard never learning how to write PHP over 21 years as one of my greatest successes.

There are right-wing candidates in Japan, and they have been winning lately.

ICE actually has a ways to go. Some historical US deportations (and remember the population was smaller then):

1930s (Great Depression): A period of mass "repatriations" saw an estimated 1.8 million people of Mexican descent—including many U.S. citizens—rounded up and deported or pressured to leave voluntarily. These were often informal raids and not all were official deportations.

1954: Operation Wetback resulted in the expulsion of hundreds of thousands of individuals, though historians estimate the number was closer to 300,000.

All you need is your third idea: H1-B's may change jobs at will.

Your other ones sound difficult or constitutionally questionable to enforce.

You do know that prison was closed because it was incredibly expensive to operate. No? Ignorance is bliss I guess.

No, it's well ascertained that EVs are fine for almost every civilian use case these days, but lets also remember that this probably doesn't apply for you specifically, because so much as having an app on your phone for your car (EV or not) is too much for you to handle.

Well, yes, you do, because the BMS keeps track of that.

A gas car, on the other hand....

And I'm never 'caught' with low charge in the first place, because I start every day with a full charge, so....?

So AI ingests the text books to learn about the subject so it can...create text books?