I believe this is the spirit of the "solved problem" comment: not that the solution is an off-the-shelf widget, but that if it has ever been solved, then that s

I believe this is the spirit of the "solved problem" comment: not that the solution is an off-the-shelf widget, but that if it has ever been solved, then that solution could technically be used again, even if organizing the right people is exorbitantly expensive. Offering it for sale != having solved it.