A computer wouldn't be illogical in the Middle Ages, it wouldn't have been understood. They didn't understand the Solar System at the time either, would they have claimed it was illogical at that time too?
Anyway, I think saying that illogical things can exist is very easily shown to be false. In logic (especially classical logic), there is a principle called the law of identity (A=A, that is, A is A). In other words, something is itself. One derivation the law of identity is the law of noncontradiction (A != !A, that is, A is not Not-A). In other words, something cannot be itself and not itself at the same time, in the same way. These laws in particular are self-evident laws that cannot be made false, since denying them necessitates assuming them to be true beforehand.
Anywayl the point is that these "laws" are ways we linguistically and mentally describe the necessary facts of reality, and they are the foundation of most logical systems (dialethetic frameworks can deny the law of noncontradiction). Given they self-evidently affirm the necessary facts of reality, obviously illogical things (by which I assume you must mean things which would have to violate these laws) cannot exist if they apply to all real things.
Anyway, I think saying that illogical things can exist is very easily shown to be false. In logic (especially classical logic), there is a principle called the law of identity (A=A, that is, A is A). In other words, something is itself. One derivation the law of identity is the law of noncontradiction (A != !A, that is, A is not Not-A). In other words, something cannot be itself and not itself at the same time, in the same way. These laws in particular are self-evident laws that cannot be made false, since denying them necessitates assuming them to be true beforehand.
Anywayl the point is that these "laws" are ways we linguistically and mentally describe the necessary facts of reality, and they are the foundation of most logical systems (dialethetic frameworks can deny the law of noncontradiction). Given they self-evidently affirm the necessary facts of reality, obviously illogical things (by which I assume you must mean things which would have to violate these laws) cannot exist if they apply to all real things.
"The reason things will never get better is because people keep electing these rich cocksuckers who don't give a shit about you."
-George Carlin
-George Carlin
