Originally Posted by Fox333 This might be interesting. How have you managed to do? 
Certain physical characteristics, in the quantum world, are considered to be fourier transforms of each others wave equations. For instance position and momentum. By playing around in
wolfram alpha website I was usually able to remove imaginary terms by adding a phase shift to the original waveform. In QM problems the choice of phase seems to be quite arbitrary.
My interest was caught with that: So, my first thought was: "what if it really does?"

Even in kinematic problems we can end up with quadratic equations that have two solutions. (For instance projectile position equations with respect to time including acceleration and velocity terms). One of the roots of the quadratic may be negative when solving those equations and we often just discard them. Maybe the projectile lands somewhere else and at a different time in the multiverse but I lack the confidence to say the other quadratic result would be predicting that. Likewise my same sentiments follow with the often many solutions to differential equations.