See the photo of the Sydney bridge. Notice that you can't see the sky when the lights are on, but when the lights turned off, the sky is visible - cloudy, but visible.
If enough turn off, and skies are clear maybe the Milky Way will be seen for the first time in decades from around Seattle, I think that would be an awesome goal for Seattle if we could darken the skies long enough to see what was lost many years ago. Yeah....skies need to be clear for that to happen, but maybe we'll get lucky this time?
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