Bulls, Bears Make Money, Pigs Get Slaughtered

Editor's note: As a special bonus to TheStreet.com readers, we will be running an updated version of Jim Cramer's "Twenty-Five Rules of Investing," from his latest book, Real Money: Sane Investing in an Insane World.. Here's Rule 1.

What would you do if I told you the Nasdaq were to go up 1,000 points between now and November? What would you do if I told you the Nasdaq was going to double by December? How about if I told you that after it doubled, you would then catch another 1,000 points up by March?

First, I think you would tell me that I was nuts, and not worth listening to. But what if I were so persuasive that you believed me. Wouldn't you want every penny you had in the Nasdaq right now?

Or would you say, "Nope, not for me, this one's not worth catching. I don't want the 1,000 points, I don't want the double and I certainly don't want that last 1,000 points. Way too dangerous for me." ...