I try to be rational (or at least my imaginary facsimile of what rationality is supposed to be). I try to look at the available data objectively (fully aware that this is impossible). I try to extrapolate what be happening now into what be happening later. And this, of course, is where naive realism punches me in the throat. There's simply no way around the limited ceiling of my own mind. It's flat-out impossible to speculate on the future without (a) consciously focusing on the most obvious aspects of what we already know and (b) unconsciously excluding all the things we don't have the intellectual potential to grasp.