No doubt all my regular readers are wondering what I thought of Derren Brown's lottery stunt during the week.
Well, I wasn't particularly impressed.
I didn't see the stunt live (I think I was out for choir at the time) but I saw it on the Net later. I thought it was quite a good trick, but clearly it could be done by some sort of camera trick, or a time delay between the lottery draw and Derren's show.
It always strikes me that the essence of magic on TV-as it could always be a camera trick-is to convince the audience that it's 'really happening'. One way of doing that is to have a studio audience, which DB didn't do:it was just him on a studio set.
I watched the follow-up show last night on which he promised he would tell us how it was done. Of course, he didn't. It was just some nonsense about mathematics and the power of the subconscious. I shouldn't have believed he was going to give away his secret.
So how was it done? Clearly DB had to have an assistant quickly produce a set of balls matching the winning lottery selection: easy enough. These then had to be substituted for the balls on show on DB's set without the TV audience seeing. The trick here, it seems to me, was to have a slight time delay between DB's performance and broadcasting it. This was observable from the slight delay in the TV he was watching with the lottery results, in fact DB referred to a slight delay himself.
Then, at a crucial point (ie when his assistant has the balls ready to substitute) DB's broadcast goes 'live', leaving a couple of unbroadcast seconds in which the assistant quickly switches the balls.
Seems logical to me, anyway...