Well, there are two ways. You can own a chunk of a successful spread-betting firm or you can be a spread-better and get things right. Miraculously, I have managed to do both. I shall come back to that.
First, let me tell you how it works. How many runs will England make in the first innings of their next Test match? The bookmaker — all spread-betting firms are bookies, whatever gravitas they may attempt to assume — might quote 260–270.

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