The $1 trillion reason Elon Musk ended Tesla FSD purchases

Tesla CEO Elon Musk

Reuters

• Tesla shifts its full self-driving service to a subscription-only model.
• Tesla CEO Elon Musk said the company will end outright purchases of FSD in February.
• The lesson: You get what you measure.

"You get what you measure" is one of my favorite concepts in modern business. It means people and organizations tend to focus their behavior on whatever metrics get tracked and rewarded.

This even applies to tech billionaires.

This week...