for example when doge reached 4-5 GH network, back in december-january, when there were only gpu mining it, even a single dude with 200gpu, can reach only 200Mh/s, and that's is just 1/40 of the total hash
this is just an example why gpu lead to decentralization, asic instead....
that's horrible a government or other entity could easily 51% that , a high hashrate is a great thing .
they could but with ASIC, not with gpu, that's the point
now imagines a coin that is as a popular as Bitcoin, but can be mined only with gpu, in a scenario like this is very unlikely that you will find a company that owns 30% of the hash like KNC are doing now with BTC