I think Aenima was a better cd overall, but the title track for Lateralus is nothing short of pure art and genius. It's so heavy on so many different levels. I agree that 10,000 Days falls short after the last two, but I still loved Jambi, Vicarious and a couple of other songs from that album. I'm really looking forward to their next effort. In my forty years of loving music, Tool is the band that I hold in the highest of regards. A true fusion of art, intelligence and talent. This is a band that comes along maybe once in a decade.