Electricity currently supplies 20% of our energy needs.

Please outline how you are planning to, in the next 20-30 years, scale world-wide electricity production, as well as the capacity of the electrical grid by 5x.

Nobody has even the foggiest plan for how that is going to be done. I understand that it's easy to just shrug, and say: "Someone will figure it out". That isn't very comforting to me.

But your point is still valid, we certainly need to more than double grid capacity if we want to rely on electrification to avoid lifestyle changes.

We are not even close to having the battery technology that will work with most things we use fossil fuels for today let alone replace the other products that come from fossil fuels.

Fuel Cells are not even on the drawing board let alone at scale.

With regard to nuclear, it's expensive because it's being demonized which creates all sorts of extra requirements which is part of what make it more expensive. Furhtermore nuclear is calculated at actual cost neither wind or solar is.