Illusions Expert – Mark Changzi | Brain Games

what you would like perceptually is that
when light hits your eye then you
immediately have a perception of worlds
line but that doesn’t happen it takes a
while to create a perception even a
tenth of a second it turns out it’s a
tenth of a second delay that doesn’t
seem like much but if you’re walking at
just one meter per second then a tenth
of a second is ten centimeters and ten
centimeters is a lot if you didn’t
correct for this delay than anything
that you perceived to be within ten
centimeters of passing you would have
already bumped into you or you would
have just pass it by the time you
perceived it and if someone’s throwing
something at you it’s going to be moving
much faster your delay might be you’re
gonna get things wrong by this much not
just by this much we need to correct for
this in order to have the kind of
behaviors that we have so what the brain
wants to do is not generate a perception
of what the world was like when it hit
the eye but generate a perception of the
near future because that way by the time
that near future arrives you have a
perception that’s representative of that
future and so you have a perception
actually of that moment you have a
perception of the present but it
requires anticipating the next moment in
order to have perceptions of the present