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Message: <blockquote data-quote="zubenelgenubi" data-source="post: 4637135" data-attributes="member: 63706"><p>And there is the problem. You have no real way to prove to yourself that anything exists outside your own mind. It's not just you. Most people are unaware, but it is what is at the core of everyone's consciousness. René Descartes said it, "Cogito ergo sum", "I think, therefore I am". The problem is that we can't know for sure that our perceptions can be trusted, and that fact is easily demonstrated, but most people don't realize or think about it, or the implications. Trusting our senses is the default, but it is based on the assumption that they can be trusted.</p></blockquote><p></p>