Yeah, its blatantly obvious. Whilst listening to this song from start to finish (instead of finish to start), you can hear the backwards vocals. This isnt about seeing what you want or what you are looking for. Period.

ALSO, during Lateralus' "spiral out, keep going", reversed sounds like "spiral out, keep going". Not nearly as distinguishable as Intension, and probably not intentional, but I thought I'd throw my two pennies in to the mix.