The Life category has several sets of rules for types of cellular automata that have existed since before most of us were born. Since these are of interest to lots of old experts in the field and even a lot of new ones.
....If that fails, they can be used to time circuits and also to heat and cool objects. :3
@powderman2 10) Don't ask how to be a moderator. There are no guidelines to follow for being made one, and the status is given for private reasons. If you do ask about it, the chances of being made a moderator become significantly smaller, and even then it's not that great or special being one.