“Quantum physics explains that there are limits to how precisely one can know the properties of the most basic units of matter—for instance, one can never absolutely know a particle’s position and momentum at the same time. One bizarre consequence of this uncertainty is that a vacuum is never completely empty, but instead buzzes with so-called “virtual particles” that constantly wink into and out of existence.”
http://www.scientificamerican.com/article/something-from-nothing-vacuum-can-yield-flashes-of-light/
How my heart sings 