I knew pretty well about the size and emptiness of space, but what blew my mind was a video where a guy, showing a ping pong ball as if it were the Sun, drove t

I knew pretty well about the size and emptiness of space, but what blew my mind was a video where a guy, showing a ping pong ball as if it were the Sun, drove to show how far the nearest star is. Not 10 kms away, not 50 km away, nor even 500. If the Sun were a ping pong ball, the closest star would be 1500 km away. It is utterly mind blowing expressed that way. Indeed, our best chance to travel that enormous distance to our next door neighbour is perhaps to take our entire Earth there.