To build or guide startups optimally, one must think and strategize as an investor. Management and operational skills are fundamental, but understanding barriers to entry and unit economics, as well as foreseeing structural shifts in technology, are indispensable to steer the ship in the right direction.

Dharmesh Shah, the co-founder of Hubspot, illustrates that one of the steps to become a millionaire is not to see money as the end game but as the byproduct. You must focus on adding value and doing the things that truly contribute to building wealth.