one thing to consider is that c is not really the speed of light. It's the maximum speed of causality. If an even takes place at a specific point in space it ca

one thing to consider is that c is not really the speed of light. It's the maximum speed of causality. If an even takes place at a specific point in space it cannot be observed at another space in time faster than the distance between the two point divided by the maximum speed of causality. Light is easy for us to observe so we mix the speed at which we perceive it to travel to the speed of causality. Seen through that perspective, if you are at a fix point in space, you could apply the same logic for the time dimension and because it's the same point in time you literally can claim that you travel through time at the fasted speed causality allow it. (normally it would be infinite speed, but because our world is discrete, albeit at a very small scale, the speed of causality is also limited but very large - ie C)