Gokul (@gokulr) has worked with generational founders like Brian Armstrong (@brian_armstrong), Jack Dorsey (@jack), and Tony Xu (@t_xu). Here he explains how great companies use "bet sizing" to keep innovating: "Every company has a core business, but if they don't take any bets alongside the core business then they're destined to fail". The Founding Partner of @MarathonMP break this down into three core principles: 1. Allocate Resources: "A core business should have about 70% of…