The more common hypothesis is that the earth/universe is only 6000 years old but evidence of prior ages was planted by God or the Devil. Of course, this is fun

The more common hypothesis is that the earth/universe is only 6000 years old but evidence of prior ages was planted by God or the Devil. Of course, this is functionally indistinguishable from an argument that the world was created last Tuesday, with all evidence of prior existence intact.