I'm the CEO of Siemens. I reply to most emails with 2-letter responses and don't have recurring meetings — here's a day in my life.

Roland Busch, CEO of Siemens AG, detailed his routine managing a global technology company combining physical and digital worlds. His day starts with a workout, followed by working breakfast where he keeps his inbox below 100 emails using quick responses like "OK" or "No." He also adheres to a rule designed to minimize recurring meetings.