Last IKEA cabinets I build had "L" and "R" printed in hidden places to solve a similar problem.

A good manual saves 80% of helpdesk time. A really good manual saves 90%.
Ikea manuals are really good. They even allow their products to be less logical in construction, resulting in lower production cost and lower transport cost on top of the lower helpdesk cost. The manual is a one time investment, the others are continuous.
As with all things, this is a balance. Making a good manual costs time and money. I wouldn't be surprised if each IKEA product is assembled according to the manual a few dozen times before it lands in the warehouses, in addition to the time spend on writing, drawing and revising the manual. Ikea can recoup that cost as savings amortized over many many products, but not all products have such a large userbase that the invested time and money will be returned.

I wonder if it's feasible to capture the uranium from the fly and fall ash from coal plants, because those things put out a lot.

Download the stuff so you can host it on a server of you own.

So long as the browsers hide my password with dots copy pasting is the only sufficiently reliable way to get temporary passwords right.

AFAIK all I have seen clearly use a set of rules. Seems to be: length + number(yes/no) + symbol(yes/no) + capital letters (yes/no)
For each "yes" a value is added to the length. The resulting sum is the metric.
Advantage is that it's easy and fast. Disadvantage is that it's not all that good.
Dictionary check + entropy calculation (using a dictionary for "correct battery horse staple" type password entropy checks) would be better but would also require far more computing power and availability of a dictionary. The user doesn't have a suitable dictionary so you can't offload the calculation to the user.

Dunno how it is in the US, but here in the Netherlands you are obligated to prevent parts from dropping off your car. Also, the quite thorough yearly tests check for such cases.
The first car would be liable.
In practice it is impossible to find liability in such a case. If I drive behind a car that looks like it's going to loose parts I'll keep an appropriate distance. It doesn't happen all that often.

Why? Too steep to brake? Too many tailgaters?

There are no permanent fixes in our world. Things wear and need maintenance. One inch a year should be taken into account with normal maintenance but that doesn't mean it'll cost extra.

Flying cars are easy.

Water often looses. See the Netherlands. In fact: hire the Dutch to design your wall.

They do have yellowcake.

Lithium batteries will be available to them in large quantities, assuming they take back the old batteries from their cars. Lithium batteries that are too old to be used in a car can be used in this way.

At the moment most battles aren't fought in space.

A major problem with worrying about both is that we need electricity.