``Decentralized'' is defined as not centralized.
No, it's not. The prefix ``de-'' (likewise, ``dis-'') signifies retraction (posterior inverse); i.e. deX X = e (e = identity) e.g. decentralize after centralize = null action.
To be perfectly clear: decentralize = de- ( ( (center) -al) -ize);
decentralize = de- centralize,
centralize = central -ize,
central = center -al.
>Nothing is completely decentralized, except grey goo vel cetera.
What? Of course there are decentralised networks, human relations or relations within a virtual social network are decentralised, are prominent examples.
Nothing is completely decentralized. Read thoroughly and comprehend what was read before attacking us with your banality.