Jelurida dev Tomislav quoted in this GTNews article

Jelurida is one of these companies developing cyrptocurrency and blockchain technology. It has recently launched cryptocurrencies NXT, Ardor and Ignis based on a more scalable form of blockchain than the technology bitcoin rests on.
Tomislav Gountchev, lead software architect and developer at Jelurida, says: “Hypothetically, one way the Chinese (or any other) government can crack down on bitcoin or other major proof of work blockchains is by shutting down mining farms, because they have physical hardware that can be confiscated or electricity supply that can be cut off.
“A government can also shut down centralised exchanges, which would shift users to fully decentralised exchanges running on the blockchain itself, and Nxt and Ardor already provide such decentralised exchange functionality.
“As for the effect on cryptocurrency prices and our initial coin offering (ICO), I think we are in a flash crash at the moment, but the market should eventually recover,” he tells GTNews.
https://www.gtnews.com/2017/09/15/jp-morgan-chase-bosss-criticisms-of-bitcoin-are-hardly-surprising/