How do you tell whether a course of action is a dead end or requires perseverance?

The world is full of examples where a person spent ten years on an idea before it became successful.

Of composers who were never appreciated in their lifetimes but are world famous post their death.

And of people who toil and toil and absolutely nothing good comes of it.

How do you know which path you’re on?

Do you have any techniques that you use to help make these decisions?

^Day 194/90 91 words