Karpahy talked for 120 seconds how many different stop signs there are (in the US). Guess how many different speed limit signs there are.
They start with one and solve the other similar problems later on. Getting the speed limit right is almost as vital as getting the stop sign right.
But Mobileye had a functioning system in 2016 that people still miss when switching to >= AP2 cars? I'm not talking about a FSD proof 99.9999% system here, I'm hoping for something I could use for everyday driving instead of the pretty crappy gps based system. Or at least here in Europe it sucks compared to AP1.