Bitcoin price crashed 47% in just 5 days.

https://www.investopedia.com/news/bitcoin-price-down-40-percent-5-days/?partner=YahooSA&yptr=yahoo

https://www.cnbc.com/2017/12/22/coinbase-one-of-the-biggest-bitcoin-marketplaces-says-buying-and-selling-temporarily-disabled-amid-price-rout.html?__source=yahoo%7Cfinance%7Cheadline%7Cheadline%7Cstory&par=yahoo&doc=104913889&yptr=yahoo

Bitcoin has crashed to as low as $10,400 yesterday from a high of $19,600 recently.  If you are a merchant that allows bitcoin payment, how will you feel about holding bitcoins in your asset account on the balance sheet?  Furthermore, the processing fee for bitcoin has gone up to as high as $40 per transaction and the processing time is 10min or more.  Consequently, bitcoin trading exchange like Coinbase will suspend bitcoin trading at its whim & fancy.  This will leave bitcoin holders with no avenue to cash out of bitcoins under volatile trading circumstances.  It is no wonder that merchants are starting to ditch bitcoin payment mode.

Some bitcoin fanatics are mortgaging their houses to buy bitcoins whilst others are borrowing from credit cards and other sources to buy bitcoins.  This credit borrowing behaviour is extremely dangerous for the financial market.

http://fortune.com/2017/12/12/bitcoin-investors-mortgages/

No wonder economists and governments are worrying that the burgeoning growth in bitcoin trading will cause other sectors of the financial industry to collapse because of this leveraged behaviour.

https://www.marketwatch.com/story/bitcoin-because-of-massive-borrowing-could-crash-the-financial-markets-2017-12-22?siteid=yhoof2&yptr=yahoo

The Japanese investors are most heavily impacted by the bitcoin crash last night because Japan is the largest bitcoin trading market currently.  Many Japanese retail investors put their life savings into this pseudo-currency to build up their retirement nests.  If they're burnt heavily, they'll have no choice but to cash out from other investments like stocks, properties, etc for travel and subsistence.  Therefore, Japan financial industry will be greatly affected by the ensuing outcome of the bitcoin crash.