An interesting property of the Unruh effect is that the very existence of particles depends on a frame. Unruh particles exist in the accelerating frame but not in an inertial frame. I think exactly the same is applicable to the gravitons for obvious reasons. So inertial pseudo-forces can be explained by the gravitons emitted from the horizon by Hawkings process. However the Unruh effect can be detected only on extremely high accelerations - 10^26 m/s², while for gravitons the effect is obvious for our real life accelerations. My question is, is it logical to assume that weak (Earth) gravity comes from a very 'cold', long-wavelength gravitons (based on the temperature in Unruh formula)? If so, the relative 'weakness' of the gravity (in comparison with the other forces) can be not a result of an 'extra dimensions', but rather a very small cross-section because gravitons are very long wavelength?