In other words tackle a really difficult problem that is aligned to your personal obsessions, such as in case A instead of doing marketing to fund movies, learn

In other words tackle a really difficult problem that is aligned to your personal obsessions, such as in case A instead of doing marketing to fund movies, learn to develop cloud based video editing software to fund making movies instead because you have to make movies to test your edits anyways and that niche is extremely tough to code for so the competition while its there is very low.