>>12007234His thesis is
a) Without fusion society crumbles about 20 years after both peak oil and peak natgas have happened. The system of using farms to feed workers at factories, petrochemical plants and mines who make equipment and chemical inputs for farms to keep operating with a production surplus that supplies urban aread where the part of the human condition that's worthwhile happens needs a huge amount of energy. The evidence does show that solar, wind, tidal, and nuclear power are only viable because of fossil fuels subsidising production and delivery costs. Dams are great but we've already dammed all the useful rivers to dam.
b) Peak oil has already happened. He bases this on oil discovery statistics that I don't know enough about to dispute.
c) Carbon capture is so energy intensive that it isn't viable on any scale that matters without fusion, so there's climate change on top of everything for a long time. It won't be fixed in the next couple decades. He's right on this one.
There are two criticisms:
1) We don't know if peak oil has happened yet. It could have been around 2010 like he suggests or it could be around 2040.
2) He ignores coal as a useful energy source. There is a shitton of coal left and plenty of countries work fine on mostly coal.