I would say yes because you said in currency online/internet but no as a new money because bitcoin is like a stock that come up and down overtime. If bitcoin will not be constant it will not beat the real cash money but I do believe that in future it bitcoin will be big and as you said it will happen we can buy food, clothes, and etc on BTC in the future. As just for now the price of bitcoin is increasing fast, so do you think it will not in the future. Think about it. and start investing now.