[montrose]

This is not only an important point in itself, but could be an interesting way to look at medicine: to model it as a process where something overflows. (I don't know what I mean more precisely than that.)

[kevinali1]

Like a waterfall. Once you're over the edge, it's an entirely different ball game.

[CardenB]

I think this is pretty commonly referred to as "preventative medicine"