That seems a high price to pay for nothing much in return. If good behaviour is a currency, it's the kind that can be minted for free. Come the next big European issue, what's to stop the Brits from agitating once again to get their way?

There's no better teacher than reality. Wisdom comes from suffering the consequences of one's acts, if one is too stupid to learn from others first.

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$E(X_t|F_s) = X_s,\quad t > s$