Yeah, the issue isn't knowing how to build small reactors, it's whether you can do so with enough economy of scale and learning to make it cheaper than conventional nuclear.
And I personally have switched from bull to bear on that. I was rooting for NuScale but they're hitting the same thing as everyone else.
Meanwhile, battery storage has been on an insane cost reduction curve.
This is a key point to many things. Need to identify the difference between technically viable and economically viable.
It is the same argument I make for Starship. Technically, yeah it should work. The economics of of going to Mars, not so sure about that.