It’s an app for sharing short audiovisual clips and it’s huge because it developed in a culture of good-natured, one-upsmanship that is suited to a broad audience of Asian youth (including China, Japan, Korea, Indonesia, Philippines, South Asia, etc.), and in turn was fueled by adaptive feeds based on user behavior and feedback. I liked it because the content was friendly, accessible, and creative. I assume others felt the same way.
I'll bite. What is it and why it's got so big?