Bitcoin will be so bright in 4 years later i think every people will meet and use bitcoin once of their life in 4 years and we will use bitcoin our every part of life for to pay someting and i belive Bitcoin will change our world system in short time .
i doubt that actually all the people will be using bitcoins because it is a new currency and it might grow or fall really fast so people will not like the fluctuations and wont use it
i think that bitcoin will be way much bigger that year and i think that more companies will accept bitcoin as a payment method what will allow me to shop with bitcoins every day