Well, one could say that we already travel through time: every second, time passes, and we reach another point in the future. That could be also time travelling.
The chronokinesis idea would allow us to go faster or slower to points in the future.
That's for time travelling towards the future.
I remember i saw a documenary about quantum physics and a scientist was saying that according to his observations, if we can change the future there is no reason why we couldn't change the past.
It doesn't say anything about travelling, but we could assume that changing the past involves travelling to the past.
At the moment, I'm seeing time as a linear line.