With so much optic fibre based internet now, we are not in the position of the early noughties where a big solar flare could have taken down most of the internet. Power reliability is a huge concern as is power and thermal efficiency in data centers and routing infrastructure. The chances of such a catastrophic outage of the internet is very low. Even if a lot went down much of it would come back up pretty fast.

Blockchain is like KMFDM: