>I bet you US$1,000 that in the year 2020, we're not even close to the kind of disaster you describe—a convergence of three disasters: global currency collapse, significant warfare between rich and poor, and environmental disasters of some significant size. We won't even be close. I'll bet on my optimism.
It seems like in the actual terms of the bet Kelly paraphrases Sale. That is how I would read it sans an actual signed legal document. But then again I'm not a lawyer or anyone versed in gambling etiquette and protocol.