Have you heard the anecdote about the fox with fleas? It lowered itself into a river, very slowly, giving the fleas enough time to move ahead of the water. In some versions, it was holding a leaf in its mouth. In others, the fleas just gathered on the tip of its nose. Either way, when eventually all but a tiny fraction of the fox is under water, it ducks under completely and the fleas all float off downstream.

When the fox's shoulders went under water, I bet some of the fleas said "ten minutes ago 70% of us lived below the fox's shoulders and yet they're all still on the fox, so there's nothing to worry about."