https://www.bbc.com/future/article/20141125-do-dreams-occur-in-slow-motion
https://mashable.com/2015/01/10/dreams-run-slowly/
https://www.frontiersin.org/articles/10.3389/fpsyg.2013.01013/full
https://www.newscientist.com/article/mg22029480-700-sleeping-daredevil-the-first-dream-hacker/#.VHMJBRD2fEc