I have a friend with MS and major back issues (lots of steel parts in his spine and vertebrae fused together) that can have any kind of pain pills he chooses (morphine, oxycontin, etc.). He said pot helps him use fewer meds. He has pain like most of us will never experience. As he explained it: "When you are in extreme pain, time stops and does not move forward. When I smoke pot, the clock starts moving again."
Our own galaxy is flat disk shaped. Our view along the plane of this disk is occluded by all the stuff in it. We can only see well beyond our own galaxy when look up our down from the plane.
I found it interesting how the animation put our galaxy near the center of the universe. I guess those ancient 'astronomers' were right after all.