In the last hundred years we went from manually cutting down trees over hours or days to having big machines cutting trees in a matter of seconds, and I find this Fascinating. In the second video I watched, taking place in the 1940’s, I was glad to see that they acknowledged the great big redwoods of California and how they wouldn’t cut them all down and have reserves for them. They had to put in so much work back then but now we have tons of machines that do the work and leave like the stuff was never there. It was also surprising how fast the more modern machines work at, I would think they would have people using chain saws and stuff but those machines they used are on another level.