Sensor technology that far outstrips our built in organs is hardly anything new. The problem is we still don't have technology that even begins to approach the human brains ability to actually interpret all this information in a useful manner.

Optics, meta or otherwise are not the limiting factor.

It's human beings that are unsustainable - doesn't matter what planet they're on.

How can we control mines? How can we control chemical and biological weapons? How can we control nukes?

History would suggest that once they exist you can do little but mitigate the worst case uses. A bit.

My Kuga has just been recalled for potential engine fires.....

Cool, doing exactly what every other manufacturer does when a potential issue is discovered.

Honestly, the guy has been instrumental in some ways in making this stuff happen, particularly on the financing front, but in other ways he's just been an utter nob that makes life difficult for Gwynne Shotwell who actually runs SpaceX. I just wish he'd keep his mouth shut until a grown up has vetted what he wants to say.

No. SpaceX might be able to though. They created the first self-landing fully reusable booster when everyone was telling them it wasn't possible. They're an innovative company with a lot of very clever people working for them so, assuming everything goes right, I think it's possible, if not likely.

Assuming Elon the loose cannon doesn't fuck things up by opening his mouth at the wrong time.

"If the Milky Way is located in the middle of a void"

It's not, if you mean an empty space in the universe that is in some way unusual. We sit in a group of Galaxies called the Local Group. Nothing unusual about the intergalactic distance between them.

Touch controls in cars are dangerous. End of story.

Yeah....it's still a tiny space compared to the volume of the atmosphere though isn't it?

Vacuum is the normal state of space. You live in an atmosphere pressurised by gravity. To create a vacuum within that pressurised atmosphere we have to counteract the effect of gravity, but we only have enough power to do in for small spaces, hence a container.