... it conjures its reaction mass from thin air, err, vacuum?

see the soldiers in blue camo over there in the desert...

Cut the brown wire, not the grey wire ...

What would true color vision be like, i.e., if your eyes could actually tell what frequencies of light they received?

Eyes would be useless, as they would supply mostly noise and very little, if any, information. Deciphering this mess would need vastly more brain volume.

Oh, and designing a useful color monitor for computers would be horrendously complex.

... color perception deficiency.

This poll confirms this fact (assumption: Slashdot readers are predominantly male).

... my father has anomalous trichromacy. After a while, you learn to ignore any statement about any color from someone affected by this, since it will just confuse you if your color perception is unimpaired.. "Please get the yellow envelope." - disregard "yellow", the envelope might be grey or light blue ...

Yet, they ignore the fact that batteries are NOT ready for semi trucks

Use electricity to synthesize hydrocarbons, run trucks (and planes, and ships) with those.

or that Oil is used for more than just energy.

Oil (and natural gas) is also used as a source of hydrogen. Which can also be produced using electricity.

Oil is also used for making lubricants ... see "synthesizing hydrocarbons" above.

Wind can NOT be counted on.

Wind availability can be determined statistically. And the more turbines you install and the large the area covered, the less likely you are to run into a "no wind at all" situation.

Batteries have been a focus of research since about the time electricity was discovered. I doubt that someone will snap their fingers and pull the miracle battery out their hat which will beat existing system by about an order of magnitude in areas like price and capacity.

Also: Name the battery technology and I'll name the resource you'll run out of if you're trying to build capacity in the TWh range. (possible exception: sodium-sulfur cells).

But I don't see why I have to buy everything at once?

Because some thing don't upgrade well individually.

Say you want a new processor. Unfortunately, that sometimes requires a new mainboard, and new RAM. The new mainboard might require a new power supply, and since the old PC case doesn't have front-panel USB 3.0 connectors, you're getting a new case, too.

While you're at it, you might as well upgrade your video card and hard drives, and at that point you've ended up with an almost completely new PC.

Umm, nuclear missile command, 90% to pass? I'd expect 100%

No, the test needs to be so difficult that no one can get 100% without cheating. Then it's easy to spot the obvious cheaters.

... unfortunately only regard one major failure (e.g. main coolant feeding line failure), with other failures (e.g. one emergency generator fails) covered by redundancies.

This might work for technical breakdowns, but not for external events. ("All coolant pumps and emergency generators fail - because the whole power plant compound is under three meters of water.").

Would you prefer pounds (or kilograms) of X, with no measure of the rate X is releasing radiation?

Yes, absolutely. I can look up what kinds of radiation X emits and its specific activity.

space shows how bad the bloat has gotten.

You have a point. Lets put it this way: I don't really care if the OS eats up 5 MB or 50 GB of my hard drive as space is cheap these days. I do mind, however, if the OS or the software it is bundled with is annoying, obtrusive, obnoxious, useless, superfluous, unnecessary or outdated and makes me spend time to get rid of it.

My myopia is increasing by about 0.25 diopters every two years. Even if had my eyesight surgically corrected, I'd be wearing glasses again in a few years and have all the possible drawbacks of the surgery.

3. Super fucking bloated edition

Actually, that's the job of the PC manufacturer. You know, stuffing the recovery partition with four dozen marginally useful programs that make you spend two hours to remove them after a Windows reinstall.

and this cool screen that can totally isolate the driver from the passengers.

I need to isolate the passengers from each other. Otherwise, they'll tear up the passenger compartment and/or I have to make unplanned trips to the emergency room.