This theory is wrong. Theory is much different than law. In theory you have to say that "if X happens, then Y must happen", and it should. However, the universe is not perfect (and could be created as a result of only FOUR atoms being made incorrectly, which kick started the big bang).
Lets talk about how the earth was made. It was made by a bunch of space dust from our star being born. The hydrogen and helium reacted and formed heavier atoms. The earth at the time when it finally settled was likely completely covered in water. 100%. Why? Land is heavier, and sinks in towards the center of the earth, naturally water goes to the top. Air above that. Easy! The Earth was like this UNTIL............. An large space mass, an asteroid, collided hard with earth and split a big part into the moon, and the rest into the Earth. The moon stayed close by (although its moving, not going to be there forever), and the IMPACT of when the asteroid hit the earth is what knocked the land mass ABOVE water (we call them continents, now). This also knocked the Earth off its axis.
This guys animation is cute but you can see all the plates changing size and shape when it makes them "magically" come together. This guys theory was disproved numerous times over the years, Stephen Hawking himself has even called it out as "imaginitive". While Neal Adams (the guy whose theory is wrong) speaks in a nice soft spoken and reasonable voice, he's just still wrong. Quantum Physics have changed a lot.
I doubt this guy even knows that Einstein has MULTIPLE theories of relativity. A cute perspective from someone not familiar with planetary formation, the universe in general and its origins, and for someone who wants to make a few bucks on YouTube.
And the earth doesnt get bigger because of solar winds throwing new particles our way -- we lose just as much as we receive, and only as a result of the magnetic poles of the Earth is the reason we can even keep the atmosphere here to begin with.
Ask me some astronomy or universe questions, you'd be surprised how much I read this shit.
If you have 64 minutes to watch a REAL YouTube video on how the Universe was *actually* created along with the current implementations of string theory and the Universe in 10 dimensions (not just 4D like we live in now (time is a dimension)).
http://www.youtube.com/watch?v=7ImvlS8PLIo
[youtube]7ImvlS8PLIo[/youtube]