Philosophy Now Forum

"...can I not know with absolute certainty that I am?" It seems that I exist...I certainly live my life with that as the fundamental...but: who knows? Mebbe I'm just a computer program, or an enjarred brain, or sumthin' else entirely. My existence may not what I imagine it to be. He didn'...

That is, if we label an object, it takes on a position in an abstract space which is different from that of another numerically identical object. For example, if x=y, then x and y are not absolutely identical, though they are numerically identical. This is because there are such things as locationa...