I don't have to really be in the 60s. Every time I hail a cab in New York, and they pass me by and pick up the white person, then I get a dose of it. Or when they don't want to take you to Harlem. I grew up with that.
Scientists will eventually stop flailing around with solar power and focus their efforts on harnessing the only truly unlimited source of energy on the planet: stupidity. I predict that in the future, scientists will learn how to convert stupidity into clean fuel.