Not a lawyer, but: When you order food at a restaurant, the law assumes an implied contract—you agree to pay for what you consume. Even without a written agreement, courts recognize this as a valid contract based on common practice.

I wonder if a future society can allow geniuses like you to opt-out of the social contract, and there'd be outlaws roaming the lands, ready to rob you that evening, hey you agreed to opt out of police protection!