Tides go as the inverse cube not the square. It is the differential change in the gravitational force not the force itself responsible for tides.The further we go back in time, the closer the moon would be, and the stronger the pull towards the Earth. If you want to apply inverse square, it would have a much greater pull the further back in time we go and probably would have been closer than what I said originally! It would have caused tsunami sized tidal changes all around the globe completely destroying any organism that was trying to make it's way in the world. It would have been a mess!
The equation to be solved is: dr/dt = (constant) * r^(-5.5) where r is the separation. The constant you get from elementary physics plus estimates of the energy dissipation rates due to the positions of the continents on the Earth.
If you solve this you find that 4 billions years ago the separation is what I stated above. It is actually more than the linear calculation but you somehow have got the linear calc. to be more.
Either way - no tsunamis.
I think YOU need to recheck YOUR math! 5,000,0000 is five percent of the total distance, not 0.5%. Another thing to think about is what a change 5 million miles would have on the weather. Have you ever had a sunburn after an especially sunny day? Think about how bad that would have been for earth's little critters to have to deal with the kind of heat that would be made much worse if the planet was closer! Think about how bad it would be for struggling plant life as it would cook while rooted. The oceans would be drying up. It would be a horrible mess, especially for TOE which states that the foundation for the problem (the supposed age of the Earth and working backwards to realize how close the Earth would have been if it is that old and if the present is really key to the past) is a necessity for evolution to have happened!
4.5 billion years * 15cm a year = 675,000 km
Earth sun distance is approx. 150,000,000 km
675,000/150,000,000 = 0.0045 = approx. 0.5%.
i.e. no big deal.
Somewhere you are off a factor of 10.
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