It seems extremely unlikely for Sir Robin to appear naturally... but there are 2^(16^2) soups out there!
So exactly how likely is it that Sir Robin would appear naturally in one soup?
i.e. if the probability was 2^-150 that would be extremely unlikely but odds are there are quadrillions of permegillions of soups with the Sir Robin anyway, it would just be extremely unlikely that we find them. Hoswever, the odds might be closer to 2^-500 in which case there is pretty much no chance a single 16x16 soup exists with Sir Robin.
on another note, should it be standardised to, for instance, "synthesis of the Sir Robin" or "synthesis of Sir Robin"?