There is space to suspend your belief/disbelief before you look it up and entertain an idea as plausible to consider what it might say about the discussion at hand. This doesn't mean blindly believing make believe, rather it means deferring coming to a conclusion, to quote the site guidelines, to converse curiously. Of course you can look it up and resolve it after the fact, but that doesn't mean the rest of the surrounding context can't be interesting without the resolution.