Go to https://NordVPN.com/sabine to get a 2-year plan plus 4 additional months with a huge discount! At 2 mins 26 seconds when I say "Peter" I meant "Paul". Sorry! Dark energy has got something to do with quantum vacuum fluctuation, whoa, physics. You have probably heard something like that. Alas, that isn't quite right. In this video I clear up the confusion. Vacuum energy is much easier to understand than you might have been told. And it doesn't fluctuate. You can support us on Patreon: https://www.patreon.com/Sabine 0:00 Intro 0:27 Vacuum Energy according to Scientific American 2:07 Vacuum Energy according to Sabine 7:11 The Gas Analogy for Dark Energy 10:04 Sponsor Message #physics #science