theory11 — Magic Tricks & the World's Finest Playing Cards

"Think Stop" copied?

Think stop is the plot. There are several methods to achieve the effect. It is like ACR. If Aaron Fisher teaches one, it will be his handling of the effect, Paul Wilson might have a different method, and Luke Jermay his style, and so on. I know that Aaron is not stepping on Lukes Think Stop by teaching it for free and I am pretty sure he isn't stepping on Paul Wilson's.
 
Aaron Fisher's version is basically public domain. It's probably the most common. I'm betting you could go to any public library and be hard pressed to not find a version of his effect explained. It's basically self working like this.

Paul Wilson's is a lot more advanced he uses a few intermediate slights and controls which I assume are his own creation.

Luke Jermay's is how a mentalist would do this effect. The moves he uses are public domain but very powerful still.

They are 3 pieces of good magic but 3 very different effects with 3 very similar presentations.