Jeff Dean is leaving Google after 27 years, closing a run that took him from employee number 30 to chief scientist. He built MapReduce and BigTable, started the TPU program, founded Google Brain and co-led Gemini.

Now he's CEO of Discovery Loop, chasing AI that improves itself. His farewell note lists it all, plus 18 office moves and Monterey bike rides.

This story was reported by The Times of India. Read the full coverage at The Times of India.