I'd be interested in why he thinks we can't scale up solar and wind. He didn't really seem to offer any reasons why he thought that would be hard.
Doing lots more of something when it's cheaper than the alternatives seems like a different thing from doing something that costs extra because it's the right thing to do.
I'm sure if someone talked breathlessly about how many roads or cars or oil or fidget spinners the global economy produces every year it would be a number so big it would be hard to grasp. But we do it without too much fuss, why can't we do it for cheap energy?
