Could a Formula 1 car really drive upside down?

At high speed, an F1 car produces downforce greater than its own weight, so the physics checks out on paper. Nobody has tried it, for obvious reasons.
Chess has more possible games than there are atoms in the observable universe
Claude Shannon estimated around 10^120 possible games, a figure now called the Shannon number. Atoms in the observable universe come in near 10^80.
Why home advantage is real
Crowds, travel and the referee factor.
Trails that cross whole countries

Long-distance hiking routes worth knowing.
How fight judges score a round
The criteria behind the cards.