The same reason why Tesla needed vision-only to work (cost & timeline) But vision only hasn't worked --- not as promised, not after a decade's worth of timelin

The same reason why Tesla needed vision-only to work (cost & timeline) But vision only hasn't worked --- not as promised, not after a decade's worth of timeline. And it probably won't any time soon either --- for valid engineering reasons. Engineering 101 --- *needing* something to work doesn't make it possible or practical.