Complex sentence: For one year, he held a postdoctoral fellowship at Cambridge working under Stephen Hawking, studying cosmology, quantum field theory in curved space time and quantum theories of gravitation, but left to co-found a computer startup in Oakland, California.
Split into simpler sentences: For one year, he held a postdoctoral fellowship at Cambridge working under Stephen Hawking, studying cosmology, quantum field theory in curved space time and quantum theories of gravitation. Myhrvold left Cambridge to co-found a computer startup in Oakland, California.