Also: it's the coolest example of type classes Simon Peyton Jones knows and he explains why here (around 34-35 min): https://youtu.be/6COvD8oynmI https://youtu

Also: it's the coolest example of type classes Simon Peyton Jones knows and he explains why here (around 34-35 min): https://youtu.be/6COvD8oynmI https://youtu.be/6COvD8oynmI