The Future is a type of time in a timeline that has not occurred yet. Albert Einstein theorize that traveling to past from the future can mess up the timeline and that's the reason why UnWar occurred and this wiki came to life. The doctors from Dr. Who time traveled to he future and now this wiki is born. There are many people who tried to travel into the future but FAILED!
There are many different ways to get to the future. The most obvious way is using a Time Machine. The time machine, whether it be a DeLorean, a TARDIS, or some cardboard box with a time circuit, will be able to travel from now to then. If you don't want to use a time machine, you could always walk there. If you want to travel ten minutes into the future, that's a ten minute walk. Or if you want to take a car, it's a ten minute drive.