Sam
I like your theory. Just a couple questions:

We'll assume you have to alive for you mind to process conscious/sub conscious thought.

When you dream (unconcsious), your brain takes a finite amount of real time (i.e. 1 second) and can seemingly produce a large amount of imaginary time (i.e. 1/2 hour).

I do not understand your argument for extending the imaginary time to infinity. The brain still has a finite amount of unconsicous AND alive time, before it expires. So it would seem plausible for the brain to imagine a LONG period of time as it is about to die, but how do you get to infinity?

dvst8