Dan Howard has come out with a recent article about the science behind Mail armor, dispelling myth and enlightening us. Others have voiced that basing RPGs on reality sets a dangerous precedent, particularly the argumentative one on authenticity and realism.
I have no problem with it, because RPGs are Ideas that are always subject to innovation, evolution, change and improvement. We can always improve on the previous game, we can achieve that same high again, and we can always learn something new. I'm not much for RPG nostalgia because to dwell on the past and the impossible task of recapturing it may overlook the merits of the present and the possibilities of the future.
As in my previous post about my GMing style, it evolved from science and it got better over time, and I feel it can be better still with discipline, empathy, diplomacy and transparency.