Saw this on Daring Fireball earlier… freaky!
The bottom line is: Paying constant attention in order to notice change or to absorb new things/data…for that matter.
MIG–being an educator–would know that first hand.
Yes, very neat - I’ve seen video of this experiment before, just can’t remember where.
Dave Dave your back, where you been , how have you been , whats happening Dave?
I’ve always liked this one: