> There are billions of computers out there that are idle most of the time. Utilizing them
That used to be popular (for instance, distributed.net) back when the processors used the same power whether they were idle or not. Nowadays, there is a huge difference in power usage and heat output between an idle or mostly idle processor, and a fully loaded one.
(My first desktop had a processor without a fan or even a heat spreader, and came with an operating system which had a busy loop as its idle loop.)
And most of these computers are running on batteries. Even on my desktop I'd have to get a decent return to share my CPU/GPU/storage. The computer cost me about $700 to build so I certainly wouldn't share it for pennies.
That used to be popular (for instance, distributed.net) back when the processors used the same power whether they were idle or not. Nowadays, there is a huge difference in power usage and heat output between an idle or mostly idle processor, and a fully loaded one.
(My first desktop had a processor without a fan or even a heat spreader, and came with an operating system which had a busy loop as its idle loop.)