Mr Kras Wrote
Honestly, is the Technique for the "hidden" coin identical to mine? If so, I did originate that concept.
Just interested, how do you go about knowing that you have originated an effect in magic. For example I can make up a trick, or even invent something without knowlage of it beforehand, only to find that it is a very old concept. Do you have to go to magical historians to get such things verified?