Why you don't reach early even if you speed up?

I remember studying this in high school physics class. At the time, it kind of blew my mind but now it just seems completely intuitive and common sense to me but alas it’s not common at all. At best, you end up shaving a minute or two off your arrival time over medium distances. Over long distances (hundreds of miles) maybe 5-20 minutes.

Is it worth it? Almost never.

The things that impact arrival time the most are reducing stops and left turns (increasing average speed), and leaving earlier of course. Now I live in a Metro area and have stopped micro-optimizing my route entirely (because traffic makes that moot) and I’m almost 100% optimize my departure time.

Maybe I am miss understanding this persons math here but why would I expect a 50% increase in my speed to translate to a 50% reduction in my travel time?

I would expect a 100% increase in my speed to translate to a 50% reduction in my travel time. Or more clearly put, double my speed, halve by travel time.

Not considering relativity, is not speed defined by change in distance over change in time? That is linear is it not?

Your long distance speed is mainly a function of how frequently and quickly you stop. Never think you can outrun a professional long haul driver.

This article debunks common misconceptions about speeding and explains why it might not lead to time savings.