Until it’s no longer more profitable to make their cars safer, or regulation requires they make their cars safer, or a competitor decides to take market share by making their cars safer.

“Because they’ve become safer over time, they’ll continue to do so indefinitely” doesn’t work for me.

That’s fine because that’s not what I said.

Which of these do you disagree with?:

• Human driving capability has shown no indication of improving.

• Autonomous vehicle capabilities are showing indications of improving.

It doesn’t take a rocket surgeon to recognize that these measures of performance will eventually intersect (unless you think there’s something fundamentally special about human driving that is impossible to replicate).