Many places like large swaths of Africa and Asia skipped building much of the traditional landlines and went straight to cell phones.
With so much of the electric grid literally wiped out, wouldn't it be cool to see them rebuild in a more future-looking fashion with many of the ideas around solar & community batteries, rather than a traditional grid?
As I said, I know that's not terribly realistic...unless Elon wanted to have a laboratory and made some big donations to prove a point. It is the kind of thing he is known for, for reasons different than most people realize (unless you read that fascinating article about him from last year).
Interesting to discuss, anyway, so go for it.