Technically speaking the price of 2 USD for 2018 is quite dim to attain because the volume of trade is low last February. If the price of XRP will rise to 1.65 USD at the half of the year then I can say that the possibility reach the 2 USD is very possible. One also we need to check is the price of BTC. In some ways when the prices of BTC raise the price of XRP also follows. Many investors are bullish on the BTC it is a good sign that XRP will also follow.