[modo_mario]

>Nuclear has already shot its wad on that one.

Given that it still ends up the best from a cost perspective (solar doesn't come close) if extended marginally i wouldn't say so.

There is one core difference. Those extensions, investments and even proper use need political will given the size and scope of such projects. Those politicianse are subject to stupidity and lobbying. Hell the US bans fuel rod recycling at the behest of oil and gas companies to give one such example.