An effective argument is established by taking the time to look at both sides of an issue.
Discrediting someone's argument or learning the popular opinion is not a good way of creating arguments, while it is not very subjective to decide what is better and what is worse.
Answer:
In other words, it is so old that it is difficult to imagine.
Explanation:
In this case, the simplest answer is the correct one. It's not about math or science; it's just what it is; the history of the universe is very hard to imagine because is humans haven't been in it for very long.
