You're worried about a slippery slope that doesn't exist. If I said "let π = 3.1415" would you be objecting that I might as well set π = 3, just because I'm no

You're worried about a slippery slope that doesn't exist. If I said "let π = 3.1415" would you be objecting that I might as well set π = 3, just because I'm not using its exact value? Are you really arguing that we can't afford to overlook any pollution? You don't solve problems by rejecting any solution that isn't absolutely perfect.