Instead of 2*Pi, Tau should be defined as Pi/2 to respect least utilitarian granularity of the constant. In basics, the single to two-dimensional semi-circular transformation distance required to travel between two points demands this (Pi/2:1). The reader is free to demonstrate the numerous further examples of the utility of this proposed re-definition (including e^(pi/2*i) = i). Tau = Pi/2 was originally proposed by Albert Eagle in 1958, so the more recent proposal as 2*Pi is unfortunate.
Happy [Belated] Birthday, EK/D.J.! Hope it was a good one.
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Missed the party but wishing you belated happy birthday
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