Long video, but I watched it until the advertisement at the end. I don't live anywhere near S.F. and my engineering background is limited (undergraduate degree

Long video, but I watched it until the advertisement at the end. I don't live anywhere near S.F. and my engineering background is limited (undergraduate degree, nothing professional), but I agree that the video author does have a valid and very important concern. It would've been a lot nicer if he shortened the video and if he showed his calculations for the steel bar that the all-thread is transferring the load to.