[mkl]

The 0 and the + are important: e^(i*pi) + 1 = 0 contains the 5 most important constants and the three most important operations. Getting them back with "+ 0" is quite inelegant.

[travisjungroth]

I don’t know. Shoving the 1 over to the left because you don’t like what it actually equals, -1, seems like an ugly hack.

Arguments better than I can make: https://tauday.com/tau-manifesto#sec-euler_s_identity