Maybe the first thing that hypothetical aliens will see of us is pixel art. Thoughts on its relevance to the timeline?
"those guys on earth really don't know what classic pixel art is all about, they're just trying to be artsy"
ok, serious now. I don't know if it holds relevance to the timeline because, as I understand, the arecibo message is not about graphic content and rather displays a series of informations that just happens to be in squares.
I'd (kinda) compare it to converting image to a sound format, it's just another form to display the information.
I believe the only exception is the human figure as it is literally the graphic representation, for this I think it shows that even "non artists" agree that squares are really good way to go for lo-fi communication.
maybe an honorable mention for the human figure?