The sound comes out, then it vibrates the air. So it's no longer even related to you. It's just air molecules. And they vibrate my eardrum. The eardrum goes into my brain. And then I have training on what those sounds mean. and then I understand what you said. You can see stuff that looked like bait balls in the ocean, like huge flocks of starlings in the sky, just on your computer screen. If we all know to keep this distance, it looks like we're moving. Those are the flocking variables.