[kazinator]

> Energy density doesn't matter, cost does.

At face value, how is this sentence not implying something like that a car battery that gives 10 miles of range and takes up most of the weight and volume of the vehicle would be perfectly okay, if it cost $10 (including installation), and could be fully charged for 10 cents.

[pfdietz]

Because I'm talking about supplying energy to the economy, not powering your car.

"Energy density" is one of the canonical nuclear bad faith arguments. Do you think he was talking about putting a nuclear reactor in your car?