I believe that our universe is but one of an infinite number of parallel universes.
I believe in the First Law of Thermodynamics, which states, in part, that matter and energy cannot be created or destroyed in a closed system.
I therefore believe that there is a parallel universe where magicians begin their act by putting a rabbit in a hat and it disappears.
I cannot prove this, but I believe it to be true.
Call it a lepus of faith.