What do we do now that will be unthinkable in 50 years?

I came across something this week that talked about the investment that goes into cars and specifically self-driving ones at the moment and how foolish it is. We should be investing in a shared infrastructure we can all use instead of wanting to own a car of our own. I can't find it at the moment to reference, but it was the prediction from Meredith Broussard who believes that self-driving cars will be unthinkable 50 years from now.

It doesn't feel safe to imagine riding in a shared driverless vehicle. Not just because the technology doesn't work — but because it doesn't feel safe to be alone in a small, enclosed space with strange men.

Pretty damning take on society right now, but I get it. As a teen, getting the bus as a group always felt safer than going alone unless it was during commuting time.