Of course we should consider human bodies like fingerprints: there are no two identical ones; but the limbs in rotation of the same body must maintain the same length…
On the contrary, the so-called man of Vitruvius, but nowadays still more by Leonardo, has succeeded in having hundreds of graphic and representative reproductions readapted, with any trick to force the limbs to keep confined within perimeters so conceived.
Someone then concealed it even better, lying to others and to themselves; but this does not cover the structural error.
We have verified that turning the arms extended upwards, the same middle finger that reaches the vertical side of the square, will not only be unable to touch the external circumference within the area of the square itself – for an elementary geometric principle – but it will cross it, going beyond it a few degrees higher up to .a[ctual], thus eluding that boundary.Note that the articulation of the shoulders is being lifted by the arms always higher, slightly increasing at head level the effective .i–.e distance. If you think that all this is exaggerated, meditate that we are following studies on the Golden Section –or not, published and discussed with decimal places; there is even someone who echoes a ‘squaring the circle’… so we place ourselves in the wake of an artist and a man of science considered a genius! It is enough to look at the wrists to realize it.