Mining cost cant determine bitcoin price. The price is driven by demand and supply. The trend in 2014 and 2018 is very similar. History not to be repeated exactly, but it would be almost same. In conclusion, bitcoin ends at 5000$ this year. 
Mining cost cant determine bitcoin price. The price is driven by demand and supply. The trend in 2014 and 2018 is very similar. History not to be repeated exactly, but it would be almost same. In conclusion, bitcoin ends at 5000$ this year.
Hope you can really predict，but sometimes histories are not that exactly the same.Good luck
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