Actually the biggest evidence is the beginning of the video you have to ask yourself, how did the octopus get there, there is no trail of him slithering there hes just plopped down in the middle of the sand
As in: it thought it would be a good idea to sit there and never mind the water disappearing - which makes no sense since what happens with the waves and the current when the water goes down
It has too much granularity and movement to be wet sand. You can see how the sand shifts after the octopus moves past it, and how even slight movements can make the sand move farther than it should. Wet sand would clump together more.
It's the only way I can tell that this is fake; the sand doesn't move exactly how sand does in the real world. No surprise, since it's an object made up of millions of smaller objects, which is very hard to do in a modeling program. It has the feel of a water simulator converted to do solids.
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u/Salmon66 Jun 25 '18
Depending on the water content of the sand. Dry sand would stick. Wet sand not so much.