The exact value of Pi, which in fact runs to only 18 digits, was calculated in the 1930s by a little-known mathematician who was already quite rich. However, he quickly realised that he risked incurring the wrath of his fellow mathematicians if he published, making pointless the many months of research he and others had been hoping to put into finding accurate values for the number. Thus the result remained secret and mathematicians ever since have continued to fabricate ever more "accurate" values for the figure, while claiming research grants for Pi-related problems which secretly make as little sense to mathematicians as they do to normal people.