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S!ayer | 4 months ago (raw) | root | parent | reply | flag 
 in other words, finance has been around since we apes started attributing value to material items.
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AbstractEquilibrium | 4 months ago (raw) | root | parent | reply | flag 
 I agree with this.  Lots of animals reciprocate favors over time or else pay a social cost; debt isn't exclusively a human attribute.