It’s covered in the later Frank Herbert books via a trail of various, disparate clues. The worms were created by mankind to produce spice (and are possibly genetically engineered post-humans) and then seeded onto Arrakis with the intent of turning it into a dedicated spice-production planet. Spice and the worms were never natural.
The worms are an alien made terraforming tool. The spice is engineered to enslave mankind over and over.
Is that some canon that I’m too not reading Brian Herbert to understand?
It’s covered in the later Frank Herbert books via a trail of various, disparate clues. The worms were created by mankind to produce spice (and are possibly genetically engineered post-humans) and then seeded onto Arrakis with the intent of turning it into a dedicated spice-production planet. Spice and the worms were never natural.
Did you read Chapterhouse? If not … then yes.
I am absolutely sure that spice is a standin for coffee…