Yeah, before living where I live now, I lived for a while in an building from the late 1800s. The smaller units were of course added cheaply in modern times, an

Yeah, before living where I live now, I lived for a while in an building from the late 1800s. The smaller units were of course added cheaply in modern times, and didn't align well with how it was originally built. One example is the original thick wooden beams that was the floor went through the unit walls. So they same piece of wood I was walking on was also being walked on by the neighbors. That was a great transmission of vibrations, especially when their kid were playing on the floor hehe.