This was actually really interesting. I mean, why couldn't this be true? Not saying that all the "proof" and such in the video is real, but can you really prove they don't exist? We've only explored a tiny part of the ocean, and we find new species (big ones like whales) very often. Who knows if mermaids exists in the parts of the ocean we're not able to explore. I find this to be very exciting and interesting. I hope we can find some real proof one day that they actually exist.