No offense, but that demonstration has nothing to do with the question I actually asked.It's not flawed.
You can prove it by going to your neighborhood playground, jumping on the great merry-go-round that spins horizontally to the ground. The kind kids speed up by kicking their legs against the ground as it spins:
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Once it's spinning pretty fast, walk to the center and see what it feels like. Then walk to to the edge and do the same.
"Gravity" increases the further away from the hub you are.