Henry Wilson replied to Jeff Root:

You still have a problem with "can but not must".
To explore that a bit, I'd like to see if you can match
this intensity curve:

http://www.freemars.org/jeff2/curve1.png

I can...but how do I know you didn't just make it up.

Unless I give you some data that I would rather not, I
guess you can't know for sure. I can only say that I did
not make it up, and that I used a commercial program to
plot the data from a standard data file exactly as I said.

And if I had made it up I don't see what difference that
would make. If you can match the curve, you can match
the curve. If you can't, you can't.

......Jeff Root, guilty of attempted fraud and deception.....

Where? What fraud? What deception?

-- Jeff, in Minneapolis