I'm in the middle of the Seattle vs DC game. It's great to see a more polished XFL back.

For the unaware, the XFL has modified traditional NFL rules to prioritize a faster, leaner game. A 25s play clock (down from 45s with the NFL), a modified kick off where teams are five yards apart, with the kicker and receiver on their respective 35 yard line (teams wait until the receiver touches the ball before they can move.)

All in all, this game is pretty fun. The pace isn't crazy fast compared to the NFL, but you definitely have fewer long breaks.

The broadcast is also great. They're constantly detailing the differences in play. They also have more interaction with coaches and players, which is fun.

Here's a full set of rule changes

I would host a competition that measured strength, speed, agility, endurance, and intelligence. I would measure strength using some strongman and some powerlifting lifts. I would measure speed with 100 meter sprints. I would measure agility with some kind of ropes course, obstacle course, and gymnastics meet. I would measure endurance with a triathalon plus rowing (a quadrathalon?). I would measure intelligence by testing ability to memorize a bit of text in their mother language, teaching them the rules to a made-up game (Calvinball anyone?), and testing them on some trivia game with a format like Jeopardy. What would you measure, and how would you measure it?