Why is this blog called Optick Illusions?

So, why did I call this blog Optick Illusions? Because I wanted to. Ok, there are some reasons besides that. When members of the Opticks project were trying to come up with the name for what is now called, Opticks Extras, a number of names were generated. One of the names I came up with was Optick Illusions, but we decided instead to go with Opticks Extras. I liked the name so much that I decided to use it name my blog about Opticks. So, now you know and knowing is half the battle.