I think the OP knows this and thats why he has asked the community. So brushing off by a casual "duh, grow up" isn't the way to go
A few people I talked to in life, have this love for learning everything to the point they feel "afraid to die" before mastering something. They aren't Einsteins - they know that. But having that insatiable curiosity to learn something through & through. It is sad to be empathetic but also a revelation how passionate some folks are. And although its a terrible plan by design, it personally keeps them going on & on. I think what they need to understand is "how much expertise" is good enough. Finding inner balance is as important as finding expertise.
A few people I talked to in life, have this love for learning everything to the point they feel "afraid to die" before mastering something. They aren't Einsteins - they know that. But having that insatiable curiosity to learn something through & through. It is sad to be empathetic but also a revelation how passionate some folks are. And although its a terrible plan by design, it personally keeps them going on & on. I think what they need to understand is "how much expertise" is good enough. Finding inner balance is as important as finding expertise.