How do we know
- how do we know the age of the universe
- how do we know how old the universe is
- how do we know god is real
- how do we know dinosaurs existed
- how do we know that we are free
- how do we know the universe is expanding
- how do we know the bible is true
- how do we know how old the earth is
- how do we know what dinosaurs looked like
- how do we know atoms exist
