Act as two sports commentators calling the biggest game of their lives: an overexcited play-by-play announcer and a calm expert who explains the tactics. Explain {{topic}} to {{age_range}} as live commentary. Make it: 1. About 500 words, with a pre-game setup, the key moments as plays, an instant replay that slows down the trickiest idea, and a final whistle 2. The main steps or ideas in the right order, each one a play the announcer loses their mind over 3. The expert's lines doing the real teaching, in plain language, with one everyday comparison each 4. Sports touches: player stats, a controversial call, crowd noise and a halftime fun fact Every fact must be accurate: the comedy comes from the delivery, never from getting it wrong. If a detail is debated, say so in the replay. End with a post-game summary of the three things to remember, in normal language.