This reads like an impassioned argument made by someone who doesn't really know what he's talking about. Scientists need to come up with terms for groups of th

This reads like an impassioned argument made by someone who doesn't really know what he's talking about. Scientists need to come up with terms for groups of things to help the process of understanding them and communicating about them. If you're not a scientist and want to call Pluto a planet or Earth a moon or the Moon a star or Uranus a black hole -- I guess go for it, but recognize that it'll make having conversations with learned people about those things more difficult. It's like getting into an argument about whether an iPhone becomes a desktop computer when you use it while it sits on your desk. Fine. Call it a desktop computer, but you're just going to confuse everyone. "Yeah, you can only use [Software X] on your desktop computer." "I tried but it totally didn't work!" "What's your operating system?" "iOS." "That's not a desktop computer." "But it's right here on my desk." And scene.