[davman]

Does this not grant you the perfect opportunity for personal improvement?

Work on some pet projects to keep your skill set fresh, and in an ideal world, come up with something that makes you money and you can eventually turn into your full-time job.

[pjc50]

Usually workplaces ban working on pet projects, or at the very least claim all IP rights on them.

[Phlarp]

This is quite true, but if the goal is to develop skills more than it is to develop IP, this shouldn't really matter.

I suspect very very few individuals have hit a grand slam startup idea out of the park while simultaneously learning a new language or domain.