Something that endlessly loops forever is recursal.
In theory, a black hole is recursal.
If you understand programming, you can endlessly loop a method (a) by putting that methods name inside of its own method, therefore method (a) is going to be a recursal method.
If you still don't get it, see recursion
In order to understand recursion, you must first understand recursion
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(Computer Science)
A method of problem solving that depends on solving smaller instances of the same problem to get the solution
Command: Find your way home
Recursion: If you are at home stop moving
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