HAGART wrote:I'm glad I got a lot of feed back and have you all thinking about it.
I've actually read about something relevant not too long ago. When the brain receives a particular type of sensory input, its neurons fire in a particular pattern somehow congruent with the mental model it produces and it assumes the external state of affairs stay that way until 'told' otherwise by further sensory input which indicates change.
And it has a filter, too, the one mentioned by Pilgrim which helps the brain consciously regard only that which it deems most valuable in its attempt to make sense of the world. The inevitable gaps in accuracy that this nervous system produces are filled with fictions---hence the instances where illusions perceptually work.
Its 'porkies' are a symptom of the necessity to disregard superfluous information. The world exhibits far too many changes for the brain to register everything on time in awareness; it would take too much brain power to compute everything as if all changes must matter to the subject.
Evolutionarily speaking, it's all about the living organism and how it can cope when bombarded with sensory information; the way our brains work today is a reminder of a prehistoric past where our species had to be quick in order to survive.
Hagart wrote:As a lucid dreamer, have you noticed that when you look at something and then turn away and look back again it's different?
In other lucid dreams I just go along with it and never notice at the time, but everything is changing.
I can relate to this. The lucid dream self is very similar to the waking self. Because they share memory and many other mental faculties such as logic and reasoning as a result of trying to fathom the real world for years, they have equivalent waking potentials and the power to discern and distinguish. Hence why irrational changes and the abstract in general will not go unnoticed and the 'aha!' moments experienced by dreamers when they become lucid.