> The Butterfly Effect by Dave Forrest

Use it Impromptu Report this review
Verified buyer Pro Privacy ON (login to see reviewer names) on November 1st, 2015
I got this trick because the description said it can be done impromptu (I mostly only use borrowed decks). This is true. Of course, it is going to be slightly different looking than the prepared deck. But it still looks very strong.

I actually think the impromptu version is stronger than the prepared one. Here is why. In the prepared version the deck is never shuffled. This makes the spectator think that there is a mathematical system being used. The first two predictions are not that impressive. It is the third prediction that really sells the idea that the magician knew ahead of time what will happen. In the impromptu version there is no mathematical system to rely on, as it is somebody's else deck. Therefore, the first two predictions are significantly stronger, the audience no longer thinks it is part of some mathematical system.

I believe in the principle that the only force is the classic force, or a forcing deck (Svengali). No other forces, they all look weak and suspicious. So I tend to avoid all tricks that involve forces, unless I have some forcing deck with me. There is a force in the impromptu version, but it is so natural (it involves counting down cards, as in the demo) that it smoothly blends in. And so it does not appear to be a suspicious way for a spectator to choose a card. In fact, I did not even realize that a force for used in the impromptu version! So you can use the impromptu version without looking suspicious with a force.

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