> How do you run the data centers during the night if they are solar powered?

A combination of battery storage and grid power, which is generally quite cheap overnight if current off-peak and on-peak pricing is any indicator.

I do not see any evidence that nuclear is quickly and economically deployable. The latest nuclear expansion to come online in the US took 15 years, 35 billion dollars, and resulted in power bill increases for customers to pay for that cost. If we can actually solve that it would be nice, but it hasn't been shown yet.

This is a good example of feeling like I've been transported back in time. A time before people had an answer to the question: How can I use a computer if I've disconnected it from the grid? (I guess that takes us back to 1980)