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.

What is the single most important predictor of our happiness?

It's not money, not your craft, upbringing, environment or geography; it's the depth of our relationships. Getting social, connecting with friends and loved ones is the number one source of happiness.

According to Einstein "compound interest is the eighth wonder of the world. He, who understands it, earns it … he who doesn’t … pays it.” This eighth wonder also applies to knowledge. The fact it compounds over time should be the most important takeaway in the article.

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.

Our short-sighted error is that we need more clients to increase sales. Although this is true, it's not the only way, and it's an incomplete strategy.  Everyone is obsessed with getting more customers to increase sales. There are two additional strategies that complement each other.