This is a weird peanuts panel — notice how Linus is way in the foreground, as if he’s talking directly to us, but the speech balloon is actually behind Charlie Brown. The rest of the strip is executed like you’d expect, with the two walking along, the same “depth” from the reader. Weird.
Maybe it’s representative of Linus’ impending delerium tremens and lack of visual acuity caused by his blanket withdrawal. Or maybe he too needs to be treated for the poor depth perception caused by amblyopia ex anopsia, just like Charlie’s sister Sally!
