A/C: Incandescents produce heat, the AC has to work harder to remove that heat. Thus the energy savings should be multiplied by approximately 2,5 if the AC is running.

Heating: Heating electricity use can be lowered by using insulation and even moved from the electricity bill to the natual gas bill by using a gas heater. Not all places where people live need heating.

Refrigerator: Modern efficient refrigerators use far less power than lightbulbs use. Let's take a huge 215+89l refrigerator/freezer combo, class A+++: the Bosch KGE36MW40.
It uses approximately 149 kWh a year. If you have 10 bulbs of 50 watts running 3 hours a day that uses (10*50*3*365)/1000=547,5 kWh.

I always thought that was the response to someone requesting a completely secure computer. To explain why the requester really doesn't want what they are asking for.

Modern dishwashers can be slightly more efficient than manual washing. But those A++ dishwashers are expensive.
Gas hot water over electric is not always an energy and cost saver. Usually the hot water is piped from the heater to the tap over a longer distance with gas heaters. The heat in the water in that piece of pipe is lost.
'round here the electric heaters are usually directly under the tap. 1 m of Ã10 mm (id) isn't much water. The gas heaters are often 10m away. With the same inside diameter that means there is 10 times as much lost heat.

Nah, they should post a security guard in full plate mail with a sword and everything.

No, over there.

They burn quite easily in a cloud of F2O2.

Disclaimer: there may be some trouble in containing the cloud of F2O2. And you really really want to contain it.

If that is true, which is highly doubtfull, that 3g modem is only active when powered down. Powered down means there is no power to the memory banks. No power to the memory banks means the data in it will be destroyed in a couple of microseconds (bar cryogenic cooling). Ergo your encryption keys (which are in your memory banks) are destroyed.

And that is all dependent on that mysterious, magical "phantom power" actually working for a useful amount of time. On die capacitors are hellish expensive.

Have you ever heard a typewriter? These things are LOUD.
By the way, any word on what they are going to do with the waste dot-matrix tape with a perfect image of what was printed? Throw it in a dumpster? Hand it to enemy spies?

Is it really a CME when earth is orbiting inside the sun?

Disclaimer: I am not an IT professional.
Why not automate the deployment and go in via VPN afterwards to check if all is well?
Of course this should be done within driving range so that you can get there a couple of hours before business hours to fix the horrible, horrible mistakes that will be made from time to time. Or when the VPN doesn't respond.

That depends, do they offer Belgian beers chilled to the right temperature?

Unless the error brings down your VPN server.

If I were a manager at Tesla I'd want to know how the car got stolen. Is the range on the keys too big? Does the car stop if it drives out of that range (which would mean the current driver has no access to the keys)? Were the electronics damaged before the crash? Was there a remote hack?

The crash, well, that is not as interesting. Most 100 mph crashes result in a mess. Not much you can do about that (unless you count limiting the max speed or adding so much support and crumple zones that it can't go 100 mph anyway)

Nope. Vantablack.

In some countries running water in a stream is clean enough to drink. For example: Sweden, Norway and Austria (if you drink up stream. The small mountain streams are clean).
It all depends on whether the natives care about the environment. In these countries rules and regulations prevent a lot of problems.