That mostly depends on how much you use ONLY your own system. If you have to use different systems much, getting used to idiosyncratic keybindings will REALLY

That mostly depends on how much you use ONLY your own system. If you have to use different systems much, getting used to idiosyncratic keybindings will REALLY slow you down, and the faster and more instinctively you use them the more it will slow you down. I do take some exception to his advocating the arrow keys - they slow you down less than the mouse, but ^P, ^N, ^F, and ^B do the exact same thing as the arrow keys and you don't have to take your hand off the keyboard at all.