Average person and Skin in the game (quote)

From APPENDIX TO BOOK 3: A Few More Counterintuitive Things About the Collective

The average behavior of the market participant
will not allow us to understand
the general behavior of the market.

Skin in the Game, Taleb

Groups of individuals are not the same as individuals.

Your team is more (or less!) than the mere sum of the contribution of their members.

You can’t understand the behavior of the team just evaluating the average teammember.

Because the average teammember is not a teammember.