"Self-driving cars in 3 1/2 years" seems, to me, like "consumer electricity from fusion in 10 years". For fans of a technology, that's a familiar optimism. I

"Self-driving cars in 3 1/2 years" seems, to me, like "consumer electricity from fusion in 10 years". For fans of a technology, that's a familiar optimism. I was young once, 20 years ago, I felt that way about fusion myself, hah!