[Niamh.]

Originally Posted by Stu

Everything is perception. The likelyhood that all reality is a shared illusion to me is far more credible than any particular religious doctrine. I have been in situations I consider out of this dimension on a few occasions, and I am convinced there is more.

For instance, when you take psychedelics their purpose on the brain is to basically widen the channels of communication that are normally filtered and that's how people 'trip' - information overload and senses get mixed up. All you see before you is a filtered version of the world. You brain has to filter it, to make sense of it all.

The OP's point is a bit daft though. Obviously our idea of blue is universal because we can cross check with each other that different things are in fact blue, and we all have the same idea of it.

I have to disagree with you about the OP's point being daft. I've thought the same before as well. I mean if you have something that is blue and you show it to a child and say this is blue, they could see it as what you call green but will now call it blue cos you told them it was blue and you both will think that you're seeing the same thing but you're not! (that sounds really confusing, hope you understand what I'm trying to say!!)