MSimon wrote:Well yes. I'm a contrarian. It comes from my engineering habits:
This won't work. That won't work. This costs too much.
After you keep slashing away at "not this" and "not that" you are left with a working design. And you absolutely have to be ruthless. It is easy to get hung up on "what an interesting idea" or "we have put so much effort into this path".
“Physicists dream of Nobel prizes, engineers dream of mishaps.” Hendrik Tennekes
Engineers are inherently conservative. Margins and safety factors are everyday facts of life.
I think you are mistaking a skeptic for contrarian. A contrarian doesn't know what he thinks until he can find out what other people think so he can be against it.
Here is an old story about a wise old man who had to deal with a contrarian.
There once was a wise old man who was widely respected in his community (We'll call him Diogenes

) People came from all around to seek out his counsel because he was a deep and thoughtful thinker. One day an ignorant young punk, (we'll call him Barry) decided to get the better of the old man, and to show him up as a fool.
Barry searched until he found a little bird, and then holding it behind his back, he accosted the old man. He said: "Old Man! What is it that I have in my hands ?" The old man replied: "You have a little bird." "Ah, Yes! " said the young man, "But is it alive or is it dead?" Thinking to himself, that if the old man said it was alive, he would quickly twist it's head off and show the old man that it was dead, but if the old man said that it was dead, he would present the bird unharmed and demonstrate the old man to be wrong.
"Well, Which is it ? Alive or Dead ? " Said Barry.
The old man responded, "The Bird ... is ... in ... your ... hands. "