Those are not good properties if you want to push technology forward quickly. The great thing about solar and wind is that we can iterate very quickly and catastrophic failure costs are nearly non-existent.
Nuclear still has great potential but the costs are just too high (and maybe they should be).
Natural disasters, terrorism, and unanticipated design flaws (generators below sea level) are important considerations. Those add costs that aren't always accounted for.
Unless we enter a _major_ era of degrowth there is no way we'll get out of fossil fuels without nuclear.
"A reality check on renewables"
We should know without a doubt whether it is workable by 2050, perhaps before then.
I strongly recommend the book "The Future of Fusion Energy" as a good summary of the current state of the field. It's written by two fusion researchers and is legit (I have a Master's in Physics myself and almost did a Plasma Physics PhD so I am somewhat familiar with the field).
The book isn't dry either, it's honestly one of the best books I've read in years.