Breaking the Spell I

I've just started reading Breaking the Spell: Religion as a Natural Phenomenon by philosopher Daniel C. Dennett.

In a paragraph noting that people are normally ignorant of their own ignorance, oblivious to their own blindspot: people are typically amazed to discover that we don't see colors in our peripheral vision. It seems as if we do, but we don't, as you can prove to yourself by wiggling colored cards at the edge of your vision--you'll see motion just fine but not be able to identify the color of the moving thing. It takes special provoking like that to get the absence of information to reveal itself to us. And the absence of information about religion is what I want to draw to everyone's attention.

If you are checking out this color in peripheral vision thing right now, raise your hand.