I could echo your sentiments (just for a different industry), but I won't to save space.   There is always something to learn, though it may not be helpful rig

I could echo your sentiments (just for a different industry), but I won't to save space.   There is always something to learn, though it may not be helpful right away.  Product and domain knowledge not so much, unless you intend to compete in the same field, but most other things are universal.  For example:  • Social issues will exist for any organization, no matter the size.  Knowing the outcomes and common signs, perhaps you can find a better way to prevent the issues you don't like.   • Surely you've encountered some implementation bumps or failures in your tenure with MegaCorp.  What caused them?  How can you avoid them?  These issues could be just as likely at a startup.  • Think about the physical production/office environment, too.  What could you change from what MegaCorp does that would make you more comfortable and productive? You may have seen a thousand ways that things are done wrong.  Perhaps that's all you need to find the one way that's right.  Henry Ford didn't develop an assembly-line controlled-labor auto factory by accident.  Maybe he didn't know it would work, but he'd seen the ways it didn't work.  Just like Edison with his electric bulb.