Well, you're making me disclose my secret, but don't tell anyone. When someone is logged into the site, the speakers will actually generate music, but it's in the supersonic range. Dogs can hear it, but people can't. And, it's filled with subliminal messages that reinforce belief in science and compels people to tell others about the site using post hypnotic suggestions in those supersonic subliminal messages. At later stages, we'll install subliminal messaging on who to vote for and what foods to eat. It's all part of the grand plan to take over the world. But, don't tell anyone any of this, please.