I have to kindly disagree with your opinion that there's nothing to learn here for aspiring entrepreneurs: one possibly actionable take-away seems to be "You haven't missed the train if you're 25, not even close. You still have time to learn, start a first company that probably won't take over the world, then try a second company."
I have to kindly disagree with your opinion that there's nothing to learn here for aspiring entrepreneurs: one possibly actionable take-away seems to be "You haven't missed the train if you're 25, not even close. You still have time to learn, start a first company that probably won't take over the world, then try a second company."