Quite a few geeks do happen to earn their living by doing the fun things one can do inside a terminal window, they're called sysadmins.

In the real world, there is more than one profession! Imagine that.

Well, yes, the English language sucks too but you have to cut it some slack - it wasn't designed, it evolved. And evolution tends to come up with crap that's barely good enough to survive.

The same is not - or at least should not - be true for programming languages.

Conservation of energy would like to have a chat with you.

"Just" the loss of radio technology? Are you kidding? Radio is such an elementary technology it could only be lost if effectively ALL knowledge on the friggin' planet simply vanished into thin air overnight.

I can't think of anything short of extinction that would make that happen, care to point out a credible way?

You can use that sort of system to initiate fusion - of few atoms. What you're describing is very similar to a Fusor, they're Mostly Harmless and in fact many people do build such devices in their garages.

Got to be a mighty big particle accelerator to compress a cup of heavy water to the same extent as a fission bomb primary, though... fusion isn't a chain reaction, you can't just fuse two deuterium atoms in a cup and expect the rest of the D2O to emulate the trick, so it's useless as a weapon. I suppose you could kill someone with one if you put it under their bed for a few years and they get cancer from the neutron radiation.

Stop parroting this shit, for crying out loud! It's almost as bad as the media hyperventilating in the opposite direction. I'm as pro-nuke as they come, and this just makes all of us look like ignorant fools.

Repeat after me: Cs-137 has a half-life of 30 years. Maybe that's an incredibly short period of time in comparison to the natural radioisotopes that decay on geological timescales, but it sure as hell isn't for the people.

The inuits aren't 60% water like the rest of us? Wow, that IS huge. How come nobody noticed before?

That's a mighty big hole, considering the surface area of the entire Sun is only about twelve thousand times the Earth.

Citation needed. None of the referred articles or anything else I've ever seen even imply the existence of atmosphere->"vegetable" part of a "loop" for methane. Plants fix CO2 from atmosphere for growth, not methane. If something, be it microbial or animal, then turns some of the carbon in plants into methane there has to be positive contribution of methane (and negative contribution to CO2).

Unless someone flipped the magical "free energy" switch, there's no unless. Producing hydrogen and oxygen uses a shitload of energy that comes mostly from getting rid of those annoying fossil fuels. Not to mention that the vast majority of hydrogen is produced by steam reforming the aforementioned annoying fossil fuels, not electrolysis.

Well, why don't we start by considering this to be a ridiculous assertion? There's absolutely no reason to assume that anyone trying to blind a pilot on purpose would be using puny off-the-shelf 5mW laser, when there are devices up to at least 1W trivially available.

Rome stood over a thousand years. Over two if you count the Byzantines as Romans. Which non-expansionist countries would you say "turned out well" in comparison, by, for example, lasting longer?

It might be a net gain for human habitability, if only there was a way of moving humans without them slaughtering each other. Unfortunately, we're stuck with silly things like national borders, and if bajillions of Chinese and Indian coastal dwellers decide they want to move to newly habitable Siberia due to rising sea levels and Russia objects, shit will hit the fan and nukes start falling.

So they do, but never before they have gone this fast, and it's not as if replacements just pop into being overnight even if punctuated equilibrium is given. And we still don't understand the biosphere fully, we may not know until it's too late which species were of vital importance to us.

There's no practical difference between "freezeframe collapsing" and a rate of change too fast for biosphere to adapt to, which is already happening.