This has been debated to death already, but I find all your arguments pretty weak, if not plain wrong. What else is there to do on a noisy flight besides taking a nap ? If you want to work, get an office ! As for hurting your back, those seats are way too straight and hurt my back quickly if not reclined. PS: the angle of the table doesn't change upon reclining.

Kind of... the ability to resist cold for one...

I have no idea. I was a student and just wanted to test some of my hardware at cold temperatures. The guys in charge of cryogenics were on vacation but other guys were all like "we know this stuff, we can run the test..." Yeah, right.

In 1994 I had a liquid nitrogen tube break above my head while preparing an experiment for Antarctica. About 30 liters poured on my head in a second. I felt it go instantly trough my clothing, run over me, and on the floor. Everybody else in the lab ran away, but I couldn't because it formed a dense could, I couldn't see anything and I was behind a lot of equipment and cables. Then the floor exploded: I couldn't see what was going on but very loud cracking and banging noises later proved to be the tiles shattering. Fortunately I was wearing security shoes and just stood my ground. After the fog cleared I saw some faces at the door: "Are you still alive?"

Ha, for years my bank website used 4-digit pins as passwords... Fortunately that changed. After a major break-in I assume.

So is that about the Dorset which were finally wiped out... only 112 years ago by disease ?

And Russia needs to stop attacking other people...

Honest typo in this case, I swear.

Going too deep and particularly up too fast will get you killed. Going underwater is dangerous. More so than being up in the air where the only risk is basically hitting the ground.

England

So they had different methods for moving different shaped blocks. Big deal.

Well, that is terrifying as ntpd is one of the most complex piece of code I know; and for such a seemingly easy task as setting the time. I worry about the rest !

Why would you use lightbulbs in the 21st century ? A LED lamp will last 10 times longer on the same battery and will also have a much longer lifetime. And there are now LEDs available that are more powerful than the best Maglight, just look for bike lights above 100$.

Safer ? You don't see the flame, which makes it a liability.

You can also install Firefox on your smartphone (Android at least) and then install the AdBlock addon just like on the desktop version. Without having to root anything.