The exact origin of this recording is not widely documented, so its life online is defined more by how creators reuse the phrase than by a single source scene. Short spoken lines like this spread through soundboards and short form edits because they are instantly understood without context. I can see became a reusable punchline for moments of sudden clarity, restored sight gags and sarcastic reactions to the obvious. Its plain wording makes it easy to search, share and drop into many different videos while keeping the joke immediate.