[noir_lord]

One of the reasons it takes a.long time is because we build so few.

When France decided to go nuclear for its power grid they where bringing a reactor online every 3mths for 15 years on average (56 plants in 15yrs).

Economies of scale combined with mass production would bring the costs down, if you could get multiple countries to agree to a standard design with commonality of parts and maintenance you could scale up really fast once you had a pipeline for each major component.

When we are talking about an extinction level event I think a species level Manhattan project is a good solution.

Won't happen for myriad reasons but wouldnt it be nice if our own vicious self interest didn't doom our not so distant ancestors.

If my step soon makes it to 90 he'll see 2100.

I'll be long gone before then.