If you enjoy machine work

Thank you for that.?ÿ I don't subscribe to many on youtube, and just hit the button.?ÿ Not only is that kid talented, but he makes a really nice edited video.

Some of these kids are so talented it makes an old geezer feel worthless. I watch the "How it's Made" channel on you tube. It's a great program but I would like to see how these machines that bag, mold, squirt, bend, etc....are designed and built. Also who repairs them and how much they cost. ?????ÿ