These statements are not "silly word games" Cofty. Neither is it "pretend". This is reality my friend, and unless you acknowledge that you will continue with your illogical conclusions.
So, how is it logical to make a decision based the possibility an unknown ungraspable unknown, information that, even if we knew existed, we couldn't understand?
You're talking out of both sides of your mouth. On the one hand, you accurately show that there is information we don't know that we don't know. OTOH, you say we should wait to know if there is information we don't know (with the added quality of not being able to understand it if we did know it existed) and wait until then to make a decision, ignoring possibility that there could be infitinte unknown unknowns that we could never discover.