The distance (usually measured in swipes) that a lazy American will scroll down a webpage or social media feed before giving up.
Often used with the preceding word "beyond" or in the acronym RSD
Bob: did you see my tweet?
Joe: naw man, it must've been beyond reasonable scrolling distance
When someone mentions a post or message and you remember seeing it but don't remember where you saw it.
Person 1: Didn't you see that post about The Dress on Twitter?
Person 2: Oh, I think I saw that at a distance.
Person 1: Did you hear about that man doing yoga on the subway tracks?
Person 2: No way, where'd you see it?
Person 1: I don't know, I think I saw it at a distance.