Commentary
Imagine ten regular adults pulling a large, empty cart along a flat road. As one participant is injured, the group loads the person into the cart and, with relative ease, continues on their journey. As a second and third person become incapacitated or are no longer able to contribute in a meaningful way, they are removed from their pulling duties and put into the cart. While the load with increased ridership becomes progressively heavier, pulling the cart is still manageable.
