1.5yrs ago saw a reel on insta of some old (70+) Chinese men doing front levers and muscle ups in a public park thought it looked easy af and tried doing it myself couldn't even do 1 normal pull up got into calisthenics now i can easily do 8+ reps of body weight (70kg) + 20kg pull ups without ever having been to a gym (thank you random Chinese uncles on the internet)