The same reason I know my left testicle is not God even if I claim it is. I can claim my left testicle is God and it would not be up to you to disprove it, it would be up to me to prove that it is.
Does't that depend on how you define the word "God"?
What do you consider to be God?
I know your left testicle isn't God because God is supposed to be a spiritual being and your left testicle is flesh. So thats
how I know that your left testicle is not God.
Before you run around stating that something is or isn't true you should be certain that what you are stating is true and how you know it is. You also have to be able to explain why you feel it is isn't.
I'm not 100% certain that Scientology tech produces OT's but I'm also not 100% certain that it does not.
Hence, I don't run around making statements one way or another on that subject because I don't know for certain which way or the other is true.