Water is not buoyant in itself. Things can be buoyant in water, but not water, because water is water. Silly bunt.
Infinite zeros are zero, so his "magic floating water" theory is bull. Besides, if the oceans floated they would diffuse to steam. Water is heavier than air, air pressure keeps it down along with gravity. If you want proof about air pressure, fill a cup completely with water, right to the rim, put a piece of card on top of the water so it forms and airtight seal, then flip the whole thing over. Take your hand from the card. The water stays in the glass, because the air pressure keeps it in.