I agree that the growing earth concept is outright bunk - but your reasoning is quite flawed.

First of all space is *not* empty. We'll start with that one as its 6AM and I really don't want to get into it more right now.

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---"Why do things have to suck so bad?" a friend once asked me.
"Because space is a vacuum and that's a lot of suck." I replied.
(Actual quote)---