It's been used as an indicator species: can your society support the infrastructure necessary to gather, train, and support a team; it's read as a marker of the health of the rest of the system.
Brazil and Argentina is more successful than Belgium, Sweden, Switzerland, Finland, Canada, Norway, USA, Japan, Korea and Englad combined. What exactly is the takeaway here?
They perform better under heat?
The parent said it was one marker for the health of the system. Not the sole marker. But I think you know that.
When FIFA permits cybernetic implants for players I'll be interested in the marker the competition will yeild.