Cool demo. On my machine though (high-dpi monitor, win10, firefox) the globe is enormous and way too big for the browser viewport. If I zoom out enough with ctrl-minus it is about the right size, so I think you're sizing the page elements incorrectly in some sort of dpi-unaware fashion. Can probably work around this with devicePixelRatio.
FWIW I don't think ‘enormity’ means what you think it does!
‘Enormity’ refers to severe moral transgression, like you could say, “It wasn't until after the war had ended that the German people became aware of the enormity of Hitler's concentration camps…” That's closer to what the word means.
I appreciate that choice, but maybe add a zoom out button to notify people that you can in fact zoom out, because I didn't even realize I could see the whole earth (Also, this made the 'what is that bright spot moving east to west' question very confusing).
