Long Street Baths, the pool I use, is open 7am-7pm, which doesn’t leave a lot of time to swim outside of work hours. During work hours it’s gloriously empty, but whenever I’ve tried going before or after, it’s crowded.
Tonight it was packed. Actually, it was so packed that it was interesting. There were enough swimmers that if everyone stopped at the same end of the pool, there wouldn’t be enough space for everyone to stand at the wall. The system depended on at least some people moving. Similarly if everyone was swimming at the same time, there’d be collisions.
I’m sure there are systems or parts of systems like this in real life. Bus garages, perhaps, that don’t have enough spots for all the buses to be parked at once. Or delivery systems (UPS, trucking, etc). Can you think of any others?
Anyway, just something that made me think.