Cebtralized means one agreeing party!
With bitcoin this is not the case ,, there is a concensis in running the bitcoin network , but the owners of asics can be in IRAN , ISRAEL , RUSSIA , USA so this means realdezentralized control , blocking any form of abuse by one single party...
the power of bitcoin is in the fact that is is a concensus between enemys.....
, CHINA , islamtic state , and others...
I know the technique but the network will stop being decentralized if the mining power keep concentrating in the hands of few.
Mining became an industrial business.
Big business tend to eliminate the small ones and merge together to establish strong corporation.
See the picture ?
Bitcoin mining could be owned by one single big company in a near future and nothing would stop them.
What would you do ? Mine with your single old GPU and hope balancing the mining power ?
I am still waiting for the very cheap ASIC that everyone can afford to decentralize the network... Where are they ?