Bitcoin is digital currency build on blockchain . And its a decentralized currency more secure than fiat currency . 21 million bitcoin will be mined and that is the beauty of this coin because there is limit on coin supply. So there is no needs to worry about over printing supply . The price of bitcoin will be increased day by day because of low coin supply . Low supply means in feature bitcoin demand will be increased. And its distributed system running on internet. No one can stop bitcoin if you want to stop bitcoin you needs To stop entire internet . So because of all this resins bitcoin prices will sky rocket in near feauture