However unless you work in high frequency trading or are trying to layout components for a GPU you can generally ignore speed of light delays below a couple hun

However unless you work in high frequency trading or are trying to layout components for a GPU you can generally ignore speed of light delays below a couple hundred miles. You might develop an understanding for the rough travel time at light speed from New York to San Francisco, or Frankfurt to Sydney, but that doesn't translate to a good understanding how long light takes from this end of the room to the other end.