An Argument Against Old Earth Being a Fact

My Dad and I were talking today about a particular theory out there in science, which says that no one can prove that the universe did not come into existence 5 minutes ago. Memories of people can be implanted. Things can look old. If it cannot be proven that the universe is more than 5 minutes old, then how can it possibly be proven that the universe is billions of years old?

Now, this does not get us to creation. It doesn’t even prove a young earth. However, it is a powerful argument against the idea that an old earth has been proven to be true. An old earth is only an hypothesis. The evolutionist might respond by saying that we are only dealing in probabilities. The above argument, however, is not an argument concerning probabilities. The probability of an old or young earth would have to be argued on other grounds. However, it does seem that, considered within a very narrow parameter, the above argument should be sufficient to prove that an old age for the earth can never be proven.