LaGrange points aside, the moon also wobbles a bit and if you were very adept at viewing you woul notice that through a year of the lunar cycle you can see about 53% of the lunar surface from Earth.

Another odd thing LH! Isn't it strange that the analogous structure of the lunar surface ( mountains and such ) is just beyond the range of the unaided human eye. If the moon rotated where we could see the "darkside" mankind might have figured out the true(r) nature of the cosmos much sooner than we did.

I haven't done the search on Google but there is something called the Goldylocks effect about all these strange little coincidences. No time right now but I will run them down at some point and let you know, that is, if someone doesn't beat me to it!