We’re all desperate for more information on the upcoming ‘Avengers 4’ after the soul-crushing conclusion of this summer’s hit movie, Avengers: Infinity War. Thus far, details have been scarce, but today, the Russo brothers shared a mysterious image prompting debate on what it could be showing us:

It just seems to be a picture from the set, but “Look hard…” implies there is something more to this photo. What could it be?

Well, currently the best guess is just that it features four items that look like “A”s. 4 As = A4. Get it? Twitter user @Jimmy2495 seemingly cracked the code.

That’s what we’re going with for now. Do you see anything else in the picture?