Logic as Arbiter of Truth

[Whit]

     This was, more or less, an example of the misuse of logic. Obviously this arguement is not reasonable, but the question was of logic. So, here ya go. The following is taken from 'Zen and the Art of Motorcycle Maintenance':

So I go on. "For example, it seems completely natural to presume that gravitation and the law of gravitation existed before Isaac Newton. It would sound nutty to think that until the seventeenth century there was no gravity."

"Of course."

"So when did this law start? Has it always existed?"

John is frowning, wondering what I am getting at.

"What I'm driving at," I say, "is the notion that before the beginning of the earth, before the sun and the stars were formed, before the primal generation of anything, the law of gravity existed."

"Sure."

"Sitting there, having no mass of its own, no energy of its own, not in anyone's mind because there wasn't anyone, not in space because there was no space either, not anywhere...this law of gravity still existed?"

Now John seems not so sure.

"If that law of gravity existed," I say, "I honestly don't know what a thing has to do to be nonexistent. It seems to me that law of gravity has passed every test of nonexistence there is. You cannot think of a single attribute of nonexistence that that law of gravity didn't have. Or a single scientific attribute of existence it did have. And yet it is still `common sense' to believe that it existed."

John says, "I guess I'd have to think about it."

"Well, I predict that if you think about it long enough you will find yourself going round and round and round and round until you finally reach only one possible, rational, intelligent conclusion. The law of gravity and gravity itself did not exist before Isaac Newton. No other conclusion makes sense.