yep, they're awesome, and may sidestep some of the HUGE investments in gigantic infrastructure - one day. What you conveniently leave out is no one is doing this yet at scale; china's got one test reactor going last time I looked.

I personally love the idea, but the nuclear industry here in the US is obsessed with large steam turbine setups in the multiple megawatt scale; even small modular reactors are getting side eyes.

So yeah, it exists, but it's not going to displace the current tech (which is really 60's tech with better electronics).