Back in 2010 the mining was decentralized. people with just a cpu were mining bitcoin

Now its only people with big resources.

People with money, not average income people, own/control the printing presses.

Though they can't (easily) change the speed of printing; they're still doing the printing.


Alternatives like quark; at least right now make it possible for the cpu to be mining at a much higher advantage than expensive centralized operations.