OK, i'm a time signature freak (include polymetrics), but this is completely blew me away: http://en.wikipedia.org/wiki/Polyrhythm How the hell could anybody play that? Is that even possible?

nope ... i have read physics journals, i have tried to understand the fermat's last theorem and why is it so special ... but this wiki beats me ... :'(

But truly, how the hell could you play decimal time signatures???? And even if you could play decimal by producing an insanely huge fraction, what can you do for irrational numbers? If i were these guys i would make a square root of minus one over e^(-pi/2) time signature and run it along with another crazy number over another obscure numer to produce THE most complex polyrythmic of all times.