This article is way too full of generalizations to really say anything about what it takes to be a "successful entrepreneur."
My personal anecdotal experience is that older entrepreneurs tend to be better at certain types of entrepreneurship -- I know several older folks who are renowned in a particular very technical area of innovation. There are probably 10 people in the world that could found a company in their space and it takes years to develop that level of specific domain knowledge.
On the other hand, when it comes to building a consumer-focused app targeting 20 year olds, it's going to be difficult for a 40 year old to relate.
As far as ego goes, my experience is that SV CEOs tend to be some of the biggest ego driven maniacs on the planet. Not all, but I would certainly say more likely than the population at large.
My personal anecdotal experience is that older entrepreneurs tend to be better at certain types of entrepreneurship -- I know several older folks who are renowned in a particular very technical area of innovation. There are probably 10 people in the world that could found a company in their space and it takes years to develop that level of specific domain knowledge.
On the other hand, when it comes to building a consumer-focused app targeting 20 year olds, it's going to be difficult for a 40 year old to relate.
As far as ego goes, my experience is that SV CEOs tend to be some of the biggest ego driven maniacs on the planet. Not all, but I would certainly say more likely than the population at large.