Very relevant to the original question, GTD also advocates having a "Someday/Maybe" list. This includes all your "long shots", that you are important to you but unlikely to start working on them anytime soon.
This list should be reviewed regularly (but rarely), say monthly or yearly. This way you can let go of the anxiety of forgetting something that is important to you, while at the same time not getting defocused from things that you can do now.
This list should be reviewed regularly (but rarely), say monthly or yearly. This way you can let go of the anxiety of forgetting something that is important to you, while at the same time not getting defocused from things that you can do now.