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Dr. “Everything we perceive is inconsistent with the physical reality of the world,” said Purves. “Everything we see, line length, color, brightness, you name it.”
So, you are not really being fooled; instead, visual illusions help reveal what our mind is doing by showing the dissonances between what we see and what is really there.
A hypothesis, said Dr. Laeng is that the brain tries to predict and show us the future.
It takes time for a stimulus like light. It reaches our sense organs, which must be sent to the brain., it needs to, in turn, process that information, make sense of it, and do something with it. And by the time our brain catches up with the present, time has already moved forward and the world has changed.
To get around this, the brain may be constantly trying to predict a little bit of the future. detect current time.
Seeing the illusion of expanding hole is a feature, not a flaw: It’s the result of your brain’s strategy to navigate an uncertain, ever-changing world, likely built from evolutionary history to help humanity survive. For example, it can be adapted to predict the future by expanding your pupils in anticipation of going to a dark place.
“This is a very philosophical question,” said Dr. laeng. “We live in a virtual reality, but it’s a pragmatically useful virtual reality.”
So, the world you see is an illusion, but don’t be alarmed.
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