Styphon wrote:ok... I've recently found myself talking to a brick-wall in the form of a guy who thinks he's smart (smarter than me, in fact) because he thumbed through a philosophy textbook at some point...
this guy's position, roughly speaking, is that he's smarter than me because he... ahem... realizes there is no past, cause it only exists in our memories.
I then point out to him that if there is no past, there is no present, because the present is merely the future's past.
He agrees with this and says there's no time at all, no past present or future, because they're ALL only concepts that exist in our minds...
yes, I know, the stupid BURNS on this guy.
which one of us at least managed to make it through high school, huh bitch?
but I digress... this morning, in some unrelated matter, he appealed to the laws of physics. I then pointed out to him that this goes against his own belief system, as the concept of time is intrinsic to physics as we know them. "that's just cause we made it that way!" no shit, sherlock, we came up with the entire study of physics and you can't just pick and choose which parts of it you want... not that there's gonna be much left after you gut time anyway!
is there ANY way to talk some sense into this guy (he is, despite all this, smarter than a lot of the idiots around here), or should I just accept that he's immune to logic?
Is he saying that time doesn't exist as an attribute of the universe? That the present is all that exists. Time as we know it simply being a concept we use to make communication easier. The same way that numbers don't exist (there's no such thing as a "three"), but are simply concepts to make communication easier (something that I've seen taught when math is being introduced).
The argument would be that time travel is impossible, because no other time other than now exists. There'd be nothing to go back or forward to. It doesn't mean the events didn't happen; it just means there's no way to get to them again.
If that's his argument, then you may want to discuss relativity and time dilation with him. Why do two objects going near-lightspeed relative to each other experience time differently? Why does light always travel at lightspeed relative to anything else in a vacuum, regardless of something's change in velocity?
If he tries to take this further, such as to the "nothing exists except what is in my mind" angle that's been discussed in this thread [or if he already has], then you can go with the things being discussed in this thread.
Perhaps some of these ideas would work:
"If nothing exists besides what's in your head, then you're saying I don't exist. But to me, I exist. How can something exist to something that doesn't exist?"
Or turn the tables: "How do I know
you exist?"
Or just make him take it to the ultimate conclusion: "If I don't exist, then why are you trying to impress me with your philosophy?"
Later...