Re: further clarification
"My 1 in 1,000 was not an opinion. I said IF. That is, if Kepler showed that TERRESTRIAL planets were rare, then TERRESTRIAL Planet Finder would most probably NOT get its $2 Billion (plus, most likely) funding. The 1 in 1,000 was a for example figure illustrative of the point I was making. If odds are 1 in 1,000 stars have terrestrial planets, you don't spend 2 billion dollars to look at 80 star systems."
Well, I hope the opposite won't be the result- say if we find 10,000 planets per 1000 stars we won't spend 20+ billion to build the TPF.
:)
But probably the TPF will be in the process of being constructed before we get any results from Kepler, so I don't think it will have much affect.