Tesla CEO Elon Musk back to ‘sleeping in the office' ahead of earnings this week

1. Elon Musk reassures shareholders with increased dedication to Tesla. 2. Tesla's sales fell 13% in the first half of the year. 3. Expectations for earnings report are low, with possible sixth decline. 4. Investors seek updates on robotaxi and AI humanoid robots. 5. Key concerns include Musk's divided attention and political impact.