Prove it to whom?
from the
wikipedia...
Solipsism (Listeni/ˈsɒlɨpsɪzəm/; from Latin solus, meaning "alone", and ipse, meaning "self") is the philosophical idea that only one's own mind is sure to exist. As an epistemological position, solipsism holds that knowledge of anything outside one's own mind is unsure. The external world and other minds cannot be known, and might not exist outside the mind.
In terms of being an "out there" idea, it actually seems
really modest. It pretty much minimises any claims of knowing stuff and believing stuff. Cogito ergo sum.
Couldn't be sure of it myself; as is solipsism, the only thing I can be sure of is that I have something with which to interpret, I could never prove to myself that what I was experiencing was real, or not; all I can know for sure is that I am.
Therefor, it's as pointless as pondering life after death. Since I just don't know, and can't know, I may as well continue believing that I'm not the only existing mind in the world. It also seems to encourage people to believe in whatever they want to believe, since they can never "know it". For example, my apple is an orange--wait, no it isn't, because I can't prove it exists either way! Except that's silly; since I can't know that I can't know, I may as well assume my apple is not an orange because it's an apple, not because I can't know it does, in fact, exist. Certainly, I may be a brain in a vat and imagining it all to begin with, but since I don't know that, I'm going to figure I'm not.
Besides, if I subscribed to solipsism, I'm not sure you even exist. But in your mind, you're not sure if I exist. You're a figment of my imagination, and I'm a figment of yours. We can always assume that you're the real one and I'm not, and vice versa, but I think I find it better to say that, since we can never know that, it's better to assume that we're both existing, and that, since we're not sure which one's the one having the illusion of life, we may as well run off of what is most likely: we're both two guys who have computers and experiencing life through two different minds. I could go in circles and say something like, "But what if everything isn't real!", but then I'd realize I still can't know that. Since the illusion is this, and not something else, I'm going to roll with it, and take it as reality; unless another reality (a second illusion) takes the spot of this one, and since the first has not been changed since my inception, it's safe to say that this is it.
Also, it seems to be popular with the autistic crowd, which isn't surprising, as they're already disconnected from reality, so why not take it to the next level?
That's hilarious. So much for solipsism. Even if I was just a brain in a vat and you were all in my head, I can never prove it. All I can do is assume this is all real, and play the game.