BTW, I've been hearing that we're about 20 years from a commercially viable fusion reactor for the last 50 years.
And I'm still waiting for a Jetsons flying car.
How about a Molten Salt Reactor?
ttps://www.world-nuclear.org/information-library/current-and-future-generation/molten-salt-reactors.aspx
It was proven in the 60s; however it was abandoned because it didnt produce fissionable waste. It is much safer and could result in a much more resilient power grid.
Why do we have flying boats but not flying cars ?
Graphene nanotubes are the key, dontcha know?
It sounds like RR is heading in the right direction. As an architect, I have been waiting for someone to come up with a reactor the size of a 50 gallon hot water heater with fissionable material the equivalent of a ping pong ball running a closed loop steam turbine to produce enough electricity to light and heat a standard 2500 SF home. These units would last 99 years and be encased in lead and concrete in the back yard. No more electric bills.