> What would we do differently if we determined conclusively which it was? We probably *couldn't* do much differently, but Newton-for-Newton a bloody great big

> What would we do differently if we determined conclusively which it was? We probably *couldn't* do much differently, but Newton-for-Newton a bloody great big squashy snowball hitting us with a certain amount of energy would have a different effect - and maybe different mitigation - from a smaller harder rock with the same energy.