for the curious :
if you are interested in an economical and devastating prediction system (the "Recession Prediction System" ; Ebook format), go take a look at www.brunonoulet.net .
this is mentionned as "[...] the perfect showpiece to end your mentalism performance. Your prediction will always be 100% accurate with all the choice of your spectators. Direct, clean. Ultimate and totally impossible ! Adaptable to all your themes, scripts..."
the author (Bruno Noulet from France) says :
"My solution has found its inspiration, a few years ago, because or lets rather say thanks to my frustration to not being able to invest in a Master Prediction System (Dick Zimmerman) (a frustration that many magicians/mentalists neither rich nor necessarily professionals must feel) [...]"
you should love it.