As a huge fan--but also as a writer & a reader in general--I found this interview really interesting.
Here are a few of the highlights:
Cleveland: With almost 15 years of separation and reflection, what do you think it was about "Calvin and Hobbes" that went beyond just capturing readers' attention, but their hearts as well?
Watterson:: The only part I understand is what went into the creation of the strip. What readers take away from it is up to them. Once the strip is published, readers bring their own experiences to it, and the work takes on a life of its own. Everyone responds differently to different parts.
I just tried to write honestly, and I tried to make this little world fun to look at, so people would take the time to read it. That was the full extent of my concern. You mix a bunch of ingredients, and once in a great while, chemistry happens. I can't explain why the strip caught on the way it did, and I don't think I could ever duplicate it. A lot of things have to go right all at once.
Watterson: Ah, the life of a newspaper cartoonist -- how I miss the groupies, drugs and trashed hotel rooms!
You can read the full interview here!