人类之光-千钧一发之际

Man's ability to project power, The key to controlling our world. We'll spend the next 100 millennia perfecting weapons that kill at a distance.

There's a window that's closing. You've got a half a second and that's the kind of moment where, if you can explode and do the right thing, you will eat, you'll survive. And if you blow it, you're dead.

To prepare the kill, The greatest key to our survival: At 300 degrees, a spark. Fire. Our planet is the only known place in the universe.

With the right conditions for fire to burn. It's the element that makes us who we are.