[colechristensen]

This was announced to somewhat of a failure a few months back – there was a big stock rally leading up to the announcement and a big crash afterwards because people didn't seem to get it, that some significant number of existing Telsas were going to be self-driving.

[kgc]

Perhaps the fact that the tech was already built into sold cars - cars that have already impacted Tesla's bottom line - was not an attractive thought for investors.

As an investor, typically, you want sales to increase more rather than increase less.