Pretty clearly shows why there’s no future for nuclear power.

Even for filling gaps in renewables, peaker plants are getting cheaper and don’t take 15 years to build.

I think that’s too simplistic of a view. Part of the high cost of nuclear is because of the somewhat niche use. As with everything, economies of scale makes things cheaper. Supporting one nuclear plant with specialized labor, parts, fuel, etc is much more expensive then supporting 100 plants, per Watt.

I can’t say more plants would drastically reduce costs. But it would definitely help.

The source article actually talks about this and measured data suggests nuclear cost actually went up, despite more capacity being built.

This is the first time, I’ve read this anywhere. More sources/studies would be really important. And there is lots of interpretations to be had on the why, but assuming the article isn’t completely off the mark, that’s cold, hard data suggesting that your (perfectly reasonable) assumption is actually wrong, after all.