If Hearn is correct that merely 2 Chinese miners own more then 50% of the blockchain, we haven't seen the bottom of Bitcoin.
Nationality is irrelevant. Mining centralization is a problem in general (until a solution is found) and it doesn't affect BTC only, but rather tens of cryptocurrencies including DASH
404360 37 seconds 1 4.17857144 DASH 3847.3
Coinmine.pl404359 1 minute 2 14.72181423 DASH 3860.0
Coinmine.pl404358 1 minute 7 2,357.21411384 DASH 3947.6
Coinmine.pl404357 4 minutes 7 290.44181073 DASH 4138.6 Unknown
404356 8 minutes 3 319.08682763 DASH 4272.6 Unknown
404355 10 minutes 13 3,164.26475198 DASH 4501.3 Such Pool
404354 14 minutes 5 58.51273415 DASH 4669.2
Coinmine.plAt least with Evolution it won't matter anymore. Masternode Quorums will vet what goes in the blockchain, and miner's blocks will be rejected if they do anything else.
Our team has seriously worked on every issue. Of course, we are indeed in the same boat until Evo gets implemented, but that won't be long now