When I first saw this, I was amazed. The most amazing thing to me though, is how strongly memories of my childhood came flooding back to a climbing tree I spent hours in growing up. It was a huge mimosa, one of those ancient ones with five branching trunks, and limbs that went up and up. My sister and I used to climb that tree up to the skinny branches where they held us only because my sister and I were lightweight kids with great balance.
I remember one brach grew up, then out, almost straight. It forked, and we could hang upside down from that fork, with only our legs keeping us from falling on our heads. I loved that branch most, among all the branches of the tree. There were parts of the tree where the bark was rubbed smooth from our climbing hands and feet. We were called monkeys, and when our cousins came over, the tree was full of monkeys.
Amazing how one video can spark decades old memories, in moments.