Once, a group of people were travelling on rocks at night. A voice came from the sky that whosoever picks up the rocks will regret and whosoever doesn’t pick up the rocks will regret. Now, the people were confused.
How can this be? Whether you pick up the rocks or not, you will regret!
Anyway, some people picked up the rocks and some didn’t. In the morning when they reached their homes, they saw that the rocks turned into diamonds.
Now, those people who didn’t pick up the rocks started regretting saying “If only we had picked up some rocks.”
Those people who did pick some rocks also started regretting saying “Why didn’t we pick up more rocks?”
Both sides eventually ended up regretting.