I just stumbled across that video last night, too. I watch most of his videos... This definitely wasn't exactly a very scientific test he conducted here (as far as dust), but I guess he did pretty much prove how much more absorbent Reptile Prime is than the other premium coconut bedding. I have no doubt that this stuff is probably amazing for absorbing urine and maintaining humidity. It's just a shame that it's so expensive. One thing i'm curious about, though, is, if you already have this stuff wetted down to maintain humidity, how would it be possible to find the urine?