I tend to agree with this. In my experience (over 35 years in tech now) generally the most successful people have the most energy. I recall being invited to din

I tend to agree with this. In my experience (over 35 years in tech now) generally the most successful people have the most energy. I recall being invited to dinner to my wife's boss' house back in the early 90s. After dinner her boss ran each of his 4 kids up the stairs on his shoulders. This was after a very long day of work - his habit was to show up in the office at 6AM and work till 6PM. I was super impressed (and somewhat envious TBH) by his energy - I wouldn't have been up for that after even 8 hours of work and we were about the same age. He was already quite successful back then but now he is the CEO of Intel - not surprised at all that he ended up in that position. I've worked with a lot of very smart people over the years who just didn't have much energy. It's not that they've all been unsuccessful, but they aren't as successful as someone who may not be quite as smart but has much more energy. I put myself in that category - I don't have the energy to be super successful and I've realized it for quite a long time (probably going back to about the time of that dinner) -I'm not going to create a startup or be a CEO/CTO. We aren't all gifted with a high-energy physiology and that's fine - we can still have a decent career. When you find the rare individual who is very smart and has a lot of energy they can go very far indeed.