I've noticed that often people who say they wouldn't want to live forever are those who have no long-term grandiose goals that they feel are personally achievab

I've noticed that often people who say they wouldn't want to live forever are those who have no long-term grandiose goals that they feel are personally achievable given enough time (e.g. become a billionaire, live on Mars, create the next Google, etc.). I've heard that there is a big longevity community in the valley.