Two teams of 11. 90 minutes (two 45-minute halves + stoppage time). Score more goals than the other team. That's it. No timeouts, minimal stoppages. The clock never stops — even for injuries. It's 90 minutes of continuous flow, which is why 1 billion people watch it.
Goalkeeper: The last line. Can use hands (in their box). Defenders: Stop the other team from scoring. Midfielders: The engine room — they do everything. Forwards/Strikers: Score goals. Modern football blurs these lines — defenders score, forwards defend, and goalkeepers pass like midfielders.
Premier League: The biggest domestic league (England). Aug-May, 38 games. Champions League: The best clubs in Europe. The biggest prize in club football. World Cup: Every 4 years. National teams. 2026 in USA/Canada/Mexico. La Liga, Bundesliga, Serie A, Ligue 1: Top leagues in Spain, Germany, Italy, France.
Watch a few games. The team that makes you feel something — that's yours. Don't pick a team because they're winning (that's called being a "plastic" and people will judge you). The best experience is supporting a mid-table team: hope without expectation. That's football.