In biological terms, the price of lunch is paid in energy, which is paid for by your last lunch, and the cycle goes around. It works so long as there is a way to obtain lunch for less energy than your last lunch provided, and if nothing else considers you a sufficiently appetizing morsel.
You paid for your blackberries by picking them. Nice low price, when they're local and in season. Tasty, too.
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branchandroot
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Date: 2009-12-21 02:04 am (UTC)You paid for your blackberries by picking them. Nice low price, when they're local and in season. Tasty, too.