Confirmation That Liquid Water Is Two Separate Substances

This two state of water might explain the Mpemba effect, where hot water cools down faster than cold water in the fridge.

Thank you, Anton! I love the water imagery behind you here. Beautiful to watch. Water is certainly life's great mystery.

I've recently been trying to understand what effect the hydration of some substances has on their behaviour in our bodies. Specifically, levothyroxine - which can be anhydrous, monohydrate or pentahydrate. I'm still feeling very ignorant of the effects of hydration, crystal structure, and what happens in our bodies! Then along you come and suggest that we might need to consider two forms of water on top of all that. Levothryoxine is itself a somewhat odd substance which has a zwitterionic form.