ergodic example: Rolling a die. If you roll a die 1e6 times in a row, you will get each number approximately 1e6/6 times. If you roll 1e6 dies once all at the same time, you will get each number approximately 1e6/6 times. Same thing basically.
non-ergodic example: Russian roulette. If you play russian roulette 1e6 times in a row, you will always be dead at the end. If 1e6 people play Russian roulette at the same time, 1e6*(5/6) people will be alive at the end, and only 1e6/6 people will be dead.
non-ergodic example: Russian roulette. If you play russian roulette 1e6 times in a row, you will always be dead at the end. If 1e6 people play Russian roulette at the same time, 1e6*(5/6) people will be alive at the end, and only 1e6/6 people will be dead.