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I wish there was more about the camera that images them. Is it that little security camera in the pod you can see in the video? Does it even have enough resolution for the minute water effects across the room to matter/be seen?

An interesting question I would have is do you get just as much randomness without the fluid at all?

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you'd get a similar amount of randomness with a lens cap over the camera; it's a neat gimmick, but still a gimmick

This is correct.

The goal isn't to capture all of the randomness of the water but instead to capture enough noise to produce a seed. All of the changes in the room get averaged into a pixel. The water just makes the room change more.

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