I don’t think this strip is that complicated. I think Lucy just simply got astronomy mixed up with agriculture.
Proof that C is really very smart
The transmogrifier is back!
C’s burping expression in the 1st panel is totally awesome lol
Like mother, like son, it seems.
Everyone loves this one! The best! Hahahaha!
I use a knife, so do a lot of other people.
Everything starts from small things, Calvin.
Everybody needs this once in a while.. sigh
This is the real Watterson talking thru his comics. C&H became a big hit and promotors wanted to commercialize his characters. This was his way of saying no.