...but we haven't always been scared
posted by eric3579![Ranked #3 - 134385 votes - 3049 star points](https://videosift.com/cdm/stars/galaxy/eric3579.png?v=5)
This playlist is meant to include videos that follow the human understanding of the nature of things and the world through history.
Not yet a member? No problem!
Sign-up just takes a second.
Forgot your password?
Recover it now.
Already signed up?
Log in now.
Forgot your password?
Recover it now.
Not yet a member? No problem!
Sign-up just takes a second.
Remember your password?
Log in now.