You just described one tier of the n-tier architecture. Yes, modern compute devices are fast. However, those devices that produce that data have to send that data… somewhere back to the company that cares about it. In your model, they would just write it to the company’s database? All 1Billion of them? C’mon. Even if you had a decentralized network capable - you don’t have a compute device in the world capable of handling that amount of traffic. Even if each device processed a chunk, and you had an efficient network to coordinate execution operations, you still need to get that data to its “caller” which would bombard it with interface calls exceeding its sockets.

So I appreciate the lively discussion on how modern consumer hardware is awesome, it’s only on the edge of a vastly bigger compute structure.