And it's selective technological aspirationalism. Why is unbounded optimism appropriate for nuclear but not for renewables? The engineering principle of KISS says renewables should be much more improvable, as indeed the data indicates they are.
Intermittent renewables supplying an industrial society does not. And there is no way to get from here to there except a lot of handwaving and "magic happens here".
Real examples in the last years:
Olkiluoto 3 - 17 Years
SHIDAO BAY-1 - 9 Years
Flammanvill-3 - 17 Years
VOGTLE-4 - 11 Years
FANGCHENGGANG-4 - 8 Years
RAJASTHAN-7 - 14 Years