Optical Illusion is not similar to not being able to see an object behind an opaque object. And when you say "brain can be cheated", it means an optical illusion.

That is the only thing I was responding in the start of this discussion. Essentially the person was saying human brain can be cheated just like a computer.

I am saying, No. Not just like a computer. Human brains does not get cheated so easily like a computer. Claiming that is outrageous and shows you have no idea of what you are talking about...