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@PPJiMat @WonderW97800751 "up to 20% of the person's body weight can be carried with no extra exertion of energy" Not that they are limited 20%. https://t.co/rYUBXGXnZV
@PPJiMat @WonderW97800751 "up to 20% of the person's body weight can be carried with no extra exertion of energy" Not that they are limited 20%. https://t.co/rYUBXGXnZV