Hello btctalk.i am in this cryptoworld since from many months but i never seen this much deep of btc so i have some questions related to it.

1) why bitcoin price gone this much down?
2)why bitcoin price fluctuate too much?
3)which features affect on the fluctuations of price of btc?
4)Is bitcoin price affect on  altcoins? If yes then which altcoins price get affected by it ànd which are not?
5)when  we should see the price increament in BTC?