"Debt - like sin - implies that one party in the transaction didn't live up to expectations, at least in the moment, and has done something wrong."

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People don't have an ongoing relation unless it's a form of debt because everything is an exchange, so ongoing relationships are incomplete exchanges, and therefore one party is probably to blame - more likely than not, both are. Sociality itself seems to become like a matter of sin, and inherently wrong.

— David Graeber