Stuck on a question that can’t be answered or a problem that can’t be solved?
Once you have looked at it from all angles, tested, measured, sometimes it is best to put it on the shelf.
Not in a spot where you will never find it again, where it can be ignored. But on a figurative shelf. Somewhere tucked away safe in our brains that you can go back to and check on occasionally.
Overtime, you will be surprised to discover that eventually the answers sort of pop up out of nowhere.
Have faith–the substance of things hoped for but not seen–that the missing piece of the puzzle you seek will be revealed in due time.