Forum:Jason Lisle's Lunar Recession Argument
I was looking at the Answers in Genesis page advertising Jason Lisle's Creationist "Astronomy" book "Taking Back Astronomy".
The Rational Wiki entry for Lisle says of his Lunar recession argument: "He is making uniformitarian assumptions about its recession rate, and conveniently did not mention other lunar processes." This may be true, but having grabbed a calculator myself and checked the sums, it appears that his argument is even more fallacious and dishonest than that.
Assuming a uniform rate of 3.8cm/year for 4.5 x 10^9 years, the Moon's position would have changed by 1.7x10^10cm. Since there are 100,000cm in a kilometre, the position of the Moon would have reduced by 171000km over said period. This is less than half the current minimum distance between the Earth and the Moon.