Most Americans know roughly how long 326 miles is. Most people don't have any idea how much 2.7E20kg weighs, and changing that to pounds or tons won't help at a

Most Americans know roughly how long 326 miles is. Most people don't have any idea how much 2.7E20kg weighs, and changing that to pounds or tons won't help at all. If you try to make the figure more accessible by comparing it to the weight of some very large object on Earth, most people will still think of it in terms of length rather than weight. For example, 2.7E20kg turns out to be in the same ballpark as the weight of Alaska assuming a continental thickness of 50km and a mean density of 2.7 (granite). But now we're imagining the length of Alaska, which is very misleading because the state is nowhere near spherical.