Is there any reason why the btc price is dropping again?
yes it exists and the reason is this:
China's Miners on Tenterhooks as Exchanges Soon Shut
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While there has been nothing officially done on the legality of Bitcoin mining, amid bans striking other parts of the cryptocurrency market such as ICOs and exchanges, there is still fear and uncertainty.
Miners in China have always managed to turn a profit, with the countrys low electricity cost and seemingly friendly approach to mining and cryptocurrency. However, as China takes a hard-nosed line to cryptos, miners are debating if it is a good business to be in.
Mining farms
China holds sway in terms of the hashrate for Bitcoin mining, and besides the more well known pools such as Antpool and F2Pool, they may be under threat if the crackdown continues.
The real issue is for those looking to capitalise on mining possibilities in China, as now that formerly lucrative business has a cloud hanging over it.
A recent example is that of Wang Hongyi who, as explained by the South China Morning Post, was looking to open a mining farm with over 1,000 computers in a remote corner of Northwest China.
https://www.cointelegraph.com/news/chinas-miners-on-tenterhooks-as-exchanges-soon-shut "