The humble Post-it Note exists today because of a failed experiment. Dr. Spencer Silver at 3M set out to create a super-strong adhesive. Instead, he accidentally made a weak, repositionable one. “FAILURE,” you say? Sure, it would’ve been easy to label it a failure and move on. But the team asked one simple question: 👉 “Why not find a use for this?” As the story goes, years later, one of his coworkers started using it as a bookmark because it didn’t rip the pages in his book. And voilà - the Pos