David Lu

The causal principle of the Kalām cosmological argument—Everything that begins to exist has a cause—remains controversial. One common objection is that while the principle may apply to things within the universe, it does not apply to the universe itself. Here, I argue that if the universe began uncaused, then there is an extremely high probability that the universe began just moments ago with the appearance of age. However, I further argue that the general agreement of independent estimates for the universe’s age provides powerful empirical evidence that if the universe began to exist, then the universe has a cause.