Obviously he can spend it in a lifetime but you and I both know he doesn't really need $10 million Executives at google have regular meetings where employees can present ideas. It is not uncommon for them to turn down 3 or 4 multi million dollar ideas in just one meeting. When you have a certain amount of money large amounts can become trivial.
No, I did not say that Floyd doesn't believe he will lose, but should he lose it would shatter everything about himself to himself. Why take that risk? You think that 10 million is 10 million because you've never had it in your hand. If you've never been rich I suggest you stop talking about those who are, you don't know what it feels like. I don't either for the record.