"the same way that colder, denser water sinks in the ocean or hot goo rises to the top of a lava lamp"
Some people never really leave home. That leads to a lot of silliness when trying to interpret things that don't happen around home. Almost everything we think we know about the universe suffers from this myopic tendency. For one thing there are electric currents in space, and scientists flatly refuse to consider such effects. They admit that the northern lights are caused by electrically charged particles, but they persist in calling that a wind. They deny that electricity has any effect except in equipment specifically designed to use it.