I agree that hydro can’t be installed everywhere, neither can geothermal, wind, solar, etc. But it’s still renewable.
I read the link the first time around, thanks for sharing it. I completely agree that upgrading the grid will cost money. Also, it’s important to note that you don’t need to grow it all with renewable-only, some new natural gas plants can get near 60% efficiency — which is three times more efficient than most cars. What you gain though, is stopping spending money on processing multiple different types of gasoline (different octanes) and paying massive amounts of money to truck the gasoline to every gas station there is — you’ll be saving all that money, and you’ll need to invest back into the electricity grid (which by the way, we probably should anyways).
Re: self-driving cars killing less people and that being ‘bad’ — it honestly doesn’t matter to the companies behind it because as long as the economics of making self-driving cars are good. By and large all Wall Street (and thus they) care about is the economics. Lund proponents may be right in saying that preventing a birth is better than rooting for someone dying in a car crash which is what it sounds like you’re doing.