What you call “up” and “down” depends entirely on your own perspective of the universe, or your ‘frame of reference’. This frame works for you, but it is not universal.
In fact, at only about 5 kilometers from you, the ground begins to curve away. If you could see through the earth, you would see people from below or from the side. Gravity is not pulling them “down” – because “down” only makes sense in your own frame of reference.
From earth's perspective, gravity is simply pulling them “in”.
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