Well, it just could be another form of duality, like wave-particle duality. You'd think waves and particles are mutually exclusive too, but nature disagrees. T

Well, it just could be another form of duality, like wave-particle duality. You'd think waves and particles are mutually exclusive too, but nature disagrees. The other thing to keep in mind is that the two characterizations come from two different branches of physics that to date have still not been fully reconciled. (General) relativity is based on a mathematical conception of space-time where gravity can be modeled by mass bending space. Quantum mechanics models all long-distance forces between particles as local interactions with a mediator particle that represents the force. These two theories have trouble getting along together for a number of reasons (look up "quantum foam"), plus we really have no way of telling if these models are a faithful representation of reality, or are just mathematically equivalent to something totally different.