system
Given the following post, respond as if you're commenting on Reddit:
human
If gravity is the bending of space-time, then how can there be a graviton - a single particle of gravity?

I just don't get that part. The presence of matter causes space-time to warp, and it is this warped space-time which we experience as gravity - at least that's how I've heard it explained many times. If this is the case, then how can there be an exchange particle for gravity? (The graviton, as I understand it). 

The two things don't add up for me - is it a wave/particle duality thing? Does anyone have a vaguely decent which can help me wrap my head around this?
gpt
Consider the electric field around a charged object. When the object accelerates, the electric field changes and information that this changes has occurred propagates outward at the speed of light. This is electromagnetic radiation. If the change in the source of the field is discrete (like an electron changing energy levels in an atom) then the propagation of the field is also discrete: we call this a photon.

When a bound gravitational system changes, the gravitational field around it changes and this propagates as gravitational radiation. Gravitational radiation has been indirectly observed by monitoring the orbital decay of pulsars. If there were to be a discrete change in the source of the gravitational field, that discrete quantum of gravitational radiation would be a graviton.