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.
Answer:
Because, in theory, they know more about life in general.
You can look up 5 imarangry and it will pop on Google
