Someday sooner or later, If the chinese goverment blocked the Internet access to the whole world,
What can we do?
Do we have any availible plan to protect the great-BTC-chain?
The Chinese government will never turn off their internet, too much of their economy depends on it but assuming they did mining difficult would just decrease to whatever hashing power is available outside the country and bitcoin would survive fine. The price might crash a bit in the short term but it wouldn't ruin bitcoin's future.