Earnings on bitcoin are becoming more popular, with every day more and more crypto currency appears on the market, it is necessary to be very vigilant and to choose for yourself an investment wisely.
Actually Its all depends on you, your hard work , your interest with bitcoins and working process. If you're laziest guy then it takes a lots of time or maybe years to earn at least 1 bitcoins. But if you're active like posting here and increasing rank and taking part in campaigns completing task , Investing with bitcoins and trade etc then nobody's can stop you to earn many bitcoins . More you do hard work more you earn bitcoins.