These people will become bored to death, that's why Tom Brady came back to the NFL at the cost of his marriage.
Sport provides resolution week in and week out. Either you win or you lose. Tennis being an individual sport is the prototypical scenario where the athlete provides said resolution via scoring a match point or failing to answer a match point
It's impossible to be a top athlete all your life but you can work towards being a top VC all your life.
She has a great reputation, is married to someone who has experience in the field, is driven, and she's an elite competitor; she will do great and won't get bored. She'll be a billionaire in no time if she is not one yet.
Financial results pale in the face of brain juices being released.
I predict golf and poker will be the way to go for athletes of disciplines which have a short lived carrer.
Resolution and a direct enemy are essential in order not to get bored. The "market" doesn't provide resolution and cannot be seen as a direct enemy , more like an ethereal entity
Sport provides resolution week in and week out. Either you win or you lose. Tennis being an individual sport is the prototypical scenario where the athlete provides said resolution via scoring a match point or failing to answer a match point