[brad]

'you mentioned people look away while thing of a new idea. I do that too. Do you know why? '

when the visual field is full of complex objects (note that looking up 'clears' the field, think of looking at sky), not all of the visual 'ram' is available for mental computation. and note that vision is the primary sense in humans.

its pretty obvious the brain would 'share memory' (computer metaphor) between say imagination and visual processing.

my guess anyway heh

note that closing your eyes brings on a physical or perhaps conditioned response to relax which is not condusive to complex abstract thinking.