[add-sub-mul-div]

In theory, there's no difference between theory and practice. In practice, there is.

With any understanding of the real world, "demand" can be seen to be artificially manufactured. The "demand" for smart TVs reflected in the long term phasing out of non smart TVs is the result of the will of the manufacters and docility of consumers. The same playbook will have nearly all of us eventually using "AI" PCs whether we want to or not.