Modern wireless mice from logitech and microsoft last for a year or two on a pair of aa batteries. There is no point making them rechargeable any more. You can always use rechargeable aa nihms if you really want to, but personally I just have 50p of alkaline aa's and in two years I will have to change them again. Some things do get better :)

Equator, poorest countries with 12 hours of sun 365 days a year. If batteries really fall in price it may rapidly have the cheapest, cleanest energy on the planet. The future of energy intensive industries may be Africa, which would be nice, they could use a break. Not to mention the cheapest place to launch your rockets into orbit.

Weirdly themselves. Makes my head hurt but the central bank, the social security fund and some other bits of US government basically own most of the national debt. Then it's the Japanese, British, Chinese and Warren Buffet. But less than you would guess.

Of course that was back when a trillion dollars was worth something.

People leave out that when the wholesale electricity prices are above the Government guaranteed price the Government makes a profit on selling the wind electricity. So in this example when the grid is full to the brim with wind energy but there is still a demand for last resort gas backup generators the wholesale price of electricity must be high and the government is minting money from the wind turbines, even while paying some to turn off... This is not always the case. But it would be interesting to hear, taking into account the high electricity prices since the Ukraine energy crisis, how much the Government makes from selling the power at a profit and renting the sea floor to the turbines, minus the subsidies paid when prices are low or the wind turbines have to be turned off. It's hard to make a judgement on the economics of it all without knowing this. We may be paying far less for subsidised wind power than we think.