A quick idea.
You get a normal distribution from a random number generator if sampled many times.
Then this would cause a problem for water and life. Since in a normal distribution of something there should exist concentrations that are high, toxic or taste bad. Like putting instant coffee in hot water. You want an even distribution.
So since everything should go towards a normal distribution by ?default. I guess that water is like a network that calculates or uses its energy to get a distribution. That is optimized for life.