It's fair that it's hard to keep the two from becoming the same in your head, you need fancy stuff to test for the force of the tide, and they are more or less

It's fair that it's hard to keep the two from becoming the same in your head, you need fancy stuff to test for the force of the tide, and they are more or less the same from a close-up (any which is much closer than, say, the moon) view! (Verbosity is your friend)