Hello everyone. I was researching topics on open and closed sets which lead to Plank values, which lead to the smallest size and then to what Plank length means. A Google search brought me to https://www.physicsforums.com/threads/time-and-matter-is-there-a-smallest-unit.764744/ After reading the post and seeing the quality of the answers I grew curious about the forum. After reading the rules of conduct and posting guidelines, I thought this would be a fine place to visit and explore. I look forward to getting to know this interesting look community.