Shows that the Princeton professors ain’t worth the money they get, if all they spend their time on is nonsense riddle questions that have no relevance to actual life. How about finding a way to teach physical chemistry so that everyone can understand it or something?
Did you answer that the ball was 10¢ or did you correctly calculate that the answer that the ball cost only 5¢? If the first, then this research has "actual life" relevance for you, personall!y
If you are in business, it means the majority of your "smart" employees would get the answer to a simple arithmetic problem WRONG! That's "relevance to real life!"
It's why the electorate of California continue to re-elect the same Democrats that have put them into this mess, election after election, hoping for a better result! That's relevance.