Video: Scientist: The Universe is VERY DANGEROUS: Life on Earth was dealt several SAVAGE BLOWS with mass extinctions – Did the universe inevitably produce human life?

[This is something I've been aware of for many years and the more I look into the long history of life on Earth I tell you that life is a very fragile thing in a very dangerous universe. Jan]

Here’s the video: https://www.youtube.com/watch?v=vT1QPuNwfhw