It's not too late to bootstrap more nuclear, but big nuclear plants don't make less sense economically nowadays. SMRs on the other hand do. NuScale's design is very interesting.
It is specifically, exactly, too late to wait for that. Did you not look at the graph?
I'm all for continued and increased R&D funding, but the best case scenario for SMRs is they help us with the back half of the transition (2035 - 2050) not the front half (2020 - 2035).
Anything more optimist than that is simply denying the science (see ipcc report again).
