Another short term improvement until self-driving cars take over. Asking for better bike lanes is like asking for a faster horse. I'd even consider modern public transportation to fit that bill although I recognize that puts me in a minority viewpoint.
He didn't say it replaces biking. He implied that it replaces the need for bike lanes.
I can see that as being plausible, assuming self-driving cars become required. We won't need bike lanes to provide safety for cyclists then because the self-driving cars will be good at not running into cyclists.
If that's the case I disagree, even if self driving cars were flawless I would want to have signage that makes my interaction with the self driving cars obvious and obviously safe.
I'd like to hear that argument too. Also, there are a lot of people who prefer cycling over even decent public transit. Doesn't apply in SF, but does in NY/Brooklyn.