OMG…I respect the answers already stated, however the answer is far more easy than offered…

What’s the most (but not needlessly) complicated equation in the universe? Arguably, it’s the Standard Model Lagrangian, which covers the dynamics of every kind of particle and all of their interactions.

Take this equation and raise it to the power of “0”… (L(standardModel)^0 = 1

Remember the rule… Anything, and it means ANYTHING, raised to a power of “0” equal 1.