It’s a good thing that we are biologically programmed to forget painful experiences. But what about exhausting or uncomfortable ones? You conveniently forget how much work goes into a tough walk. Or, at least that was my thought as the three of us finally finished out LENAPE34 walk, fully exhausted, at North Broad Street Station in Newark after 10:00 p.m. – 15 hours of nearly non-stop walking. Five other walkers had already made the entire…