That's not what he writes in his book that came out iirc last month, specificall...

Aachen on March 5, 2021 | parent | context | favorite | on: Nuclear power must be well regulated, not ditched

That's not what he writes in his book that came out iirc last month, specifically the "we moved to another design because this idea failed" I mean, but I didn't dive into it much further so I could be wrong.