-=Dark_Angel=-, P.I.24 Mar 2005
Yes, and I shall defend that as well.
Premiss: For any possible open valve O, there is a possible closed but leaky valve L, which lets through exactly as much water as O.
Premiss: For any possible closed valve C, there is a possible open but blocked valve B, which lets through exactly as much water as C.
Therefore: The set of open valves lets through, collectively, exactly as much water as the set of closed valves.
Corollary: Closed-valvedness does not inhibit the flow of water.
Your confused because your thinking of the set of *actual* valves, and mistakenly inferring things about closed-valvedness in general.
Zodiac is a dim.