As far as i know BTC and all crypto currencies are highly un predictable so due to this reason many countries not regulating bitcoin.

As of today, Bitcoin can give you instant profit in very short time. If you can buy bitcoin at 7400 and sale at 7900-8000 with in 2 or 3 days. It is sure that Bitcoin will fall to below 5000 but after some pump and dump. It has been rightly seen that BTC was at 8900 then hit as low as 8500 then it again pump to 8800 and hit as low as 8100 then it again pump to 8700 and now its dump below 7000 and again 8500 pump and after some stable it just down to 7900 now. So it will pump again to 8000 or more. But selling at 8000 enough and 300-400 dollars is enough for short term trade.

Bes careful because history is repeating and i'm challanging every one who not believe that This history will never repeat. Every one have chance to buy bitcoin below 5000 this year only. Further you can see about charts and upcoming times will totally differnt. 

I'll no write longer, just a tip for intermediates, Buy from Binance and sell high at Yobit with highest difference.