Even though you can't lift the 600 lb object it's still in the correct ballpark for illustrative purposes when dealing with orders of magnitude. In a similar v

Even though you can't lift the 600 lb object it's still in the correct ballpark for illustrative purposes when dealing with orders of magnitude. In a similar vein a 20 gallon fishtank and a small bathtub are approximately the same despite that I can't actually fit in the 20 gallon fishtank myself.