I tried to read a bit about relativistic time dilation, but the maths and complex physics overwhelmed me, confused me -I'm not trained in this field beyond common divulgation and basic education, and I'm not interested in physics professionally-, so this put me off the subject but I'm still curious about it, so I'll ask it simply enough in an attempt to get a concise answer.
If, say, someone sat on a bench at a park while Earth is going through rotation and traslation as usual, and someone else ran by, also rotating with Earth, there would be a minimal time dilation on the runner's clock from the sitting guy's point of view. Does this mean the runner is moving faster in his own timeframe or slower? I ask this because, although his clock is ticking slower, by moving faster, so I read, one can go further into the future.
Does this mean time advances slower for him, or he is advancing faster in time?
