The Hydraulic Press Channel folds an A3 sheet of paper past the supposed seven-fold limit and then crushes it with a press. It is a short, quirky experiment.
Why Hacker News points people here: Linked in paper folding threads as a fun demonstration and as the video that made the channel famous.
“It was this paper folding video (and the guy's unapologetic Finnish accent) that launched Hydraulic Press Channel to fame.”HN comment, 2026