re: #249 ObserverArt

Add to that, isn’t there an issue with harmonic rhythms too. If all the people would happen to be in step or in some kind of a beat to their steps wouldn’t that add to the problem? I am reminded of the Tacoma Narrows Bridge and how the winds started a sway that built up and twisted the structure to the breaking point. Any civil engineers here want to comment on rhythms?

At our grade school we were never allowed to march up stairs as a unit—always went to ‘route step’. That was given as the reason.