The origin
Participants stacked milk crates into a podium with stairs on both sides and tried to walk over the top without the structure collapsing.
How it spread
It spread through short video in August 2021 and drew warnings from doctors about the injuries it was producing.
What it means
A physics lesson delivered at speed. Almost nobody made it across.
Follow the source
Short editorial summary written by Random Access Memes from the sources above; the wording is ours, not theirs. Every link was checked for a live response on September 13, 2026.
