Unanswered questions in quantum mechanics
Unanswered questions in quantum mechanics include the nature of dark matter and dark energy, the relationship between gravity and quantum mechanics, and the interpretation of the wave function.
Gravity
What if gravity as such does not exist but is only the effect of wave and energy forces?
What if gravity as such does not exist but is only the effect of wave and energy forces? Gravity as an emergent phenomenon from wave and energy forces.