If there was an AI model that ran locally on a PC for basic things and cloud sourced computer power for more complex tasks, all of these data centers would become obsolete in an instant. All of the invested capital and materials wasted in a flash.
Edit: lots of great counter points in the comments.
Not really. A big problem is the energy usage, which would not go away.
Distributed computing is a real thing though. Check out GIMPS and Folding@home if this interests you. The first is looking for extremely large prime numbers. The second is to learn about proteins. I believe amateurs get more benefit from it. I remember a service to help jailbreak your 3ds used distributed computing. Also there are some folks who search for Minecraft world generation seeds with specific properties using distributed computing.