Then, they lined us all up on a scale from I to E and asked us to group up with the people next to us and do some simple things - like "plan a party".

The people at the I end of the spectrum planned a very, very different party than those at the E end. The difference was shocking. I think the extreme I people invited two close friends for dinner at their apartment. The E extremests planned a 10,000 person rager. All from the simple instructions "Plan a party."

Similar raknings for the other three pairings produced similarly dramatic differences in the way we approached common tasks. So I'm pretty sure it's not just entertainment.

You could argue people were just doing what they were "supposed" to do, but being one of those people - I don't think that was the case. We were just playing goofy icebreaker games as far as we knew.

On the other hand, practically speaking, all it taught me was "Don't assume everyone thinks like you." Not exactly a huge breakthrough, but not astrology either.