Engineers seeing this bridge: *nervous sweating intensifies* 😰 What we're witnessing is every structural engineer's nightmare - resonant frequency in action! If all these people jumped at once, they'd create mechanical vibrations that could match the bridge's natural frequency. When that happens, the amplitude increases dramatically with each cycle, and boom! You've got yourself the world's most expensive diving board! 💥 This is exactly why soldiers break step when crossing bridges. The Millennium Bridge in London actually had to close for two years after opening because it wobbled from synchronized footsteps alone. No jumping required! Next time someone suggests a flash mob on a suspension bridge, maybe suggest a nice stable parking lot instead? 😂