Based on this captain dissolution video, it seems like some of Darren Brown's tricks are VFX. I wouldn't trust the claims of being all psychology. https://youtu.be/DODGRfzdfNU
He does all sorts of stuff - card magic, big stage props, coins, mentalism, memory tricks, hypnosis, walking on broken glass, you name it - and as with any magic act, part of the fun is figuring out which is what. I did think the lottery thing was not a very good trick though, and the following special where he said he would reveal the trick was (I think) widely considered a disaster in his otherwise fairly successful career.
He does a lot of good stuff but that one was dumb. That one taints his series which was otherwise decent. It's a "prediction" that's so obviously wildly impossible it has to be a simple cheat and there's no other explanation. Immediately it was broadcast people speculated the visual effect method Captain D suggests and also other ways it could have been done using physical effects.
