It's one of those impossibly stupid questions because it takes someone impossibly smart to give an answer to someone just as impossibly smart to understand but hey, if you're into massaging your brain a little bit tonight and have run out of all questions for the day, ask yourself this: just how big is the ocean? All the oceans are one ocean.
Like did you know 71% of the Earth's surface is the ocean? And that there's enough water in the ocean to put a whopping 80-ish miles of ocean on top of the entire United States (that's higher than clouds). And pretty much, the entire world is ocean. [TED ED]