Little is documented about where RTD first came from, so its life online is defined by how short reaction clips circulate on soundboards. At under two seconds, it is easy to preview, save and reuse, which helps brief stings travel between edits, streams and group chats. Creators reach for it when a longer meme sound would slow a joke down, using its quick hit to mark surprise, failure or disbelief. That brevity keeps it useful even without a famous scene attached to it, because timing alone carries the effect.