Last Thursdayism
Last Thursdayism, also Last Tuesdayism and Last Wednesdayism, is an atheistic parody which suggests that the universe was created last Thursday with the apparent age of an ancient universe. It is a bizarre parody because no one disputes that contemporary laws of physics could not have been true at the moment of creation, or soon thereafter, rendering aging of the universe based on contemporary laws of physics problematic.
Discussion
The atheistic parody, similar to its Invisible Pink Unicorn, is a parody of arguments that the universe is about 6,000 years old despite attempts to claim an older age based on assumptions of invariance of decay rates and contemporary observations.
The parody attempts to use ridicule to conceal logical flaws in assertions of an old universe and Earth. The parody seeks to intimidate anyone into fearing ridicule if he points out fallacies in claims of an old age of the universe and Earth.