Maybe the natural limit is some naturally derived constant that happens to be slightly more than six hours, and the time-turner was designed by humans to operate in units of exactly an hour. Which you could test by seeing if it was possible to send information back in time 6 hours and 1 second using two chained time-turners.
Maybe the natural limit is some naturally derived constant that happens to be slightly more than six hours, and the time-turner was designed by humans to operate in units of exactly an hour. Which you could test by seeing if it was possible to send information back in time 6 hours and 1 second using two chained time-turners.