

Ketamine. The literal answer is ketamine.
https://www.cnn.com/2024/03/18/tech/elon-musk-ketamine-use-don-lemon-interview/index.html
Ketamine, when abused recreationally, can cause some concerning psychological and physiological symptoms, some of which may correlate to Musk’s current behaviors.
The “battery endurance in cycles” is the weirdest thing to me. Even Li ion batteries from 20 years ago could achieve 100+ charge cycles before <80% capacity is hit. Fifteen (or lower) is suspect for the testing method or concerning for the engineering.