...you've reached your contributional limit? You find that the barrel is empty, the well dry and any attempt at further input vanishes rapidly into a, metaphorical, singularity. No lower common denominator. No shared commonality at all, other than on, perhaps, such a quantum level as to have no discernable affect on higher levels.
It's a shift of disparity that, unnoticable at first, one day surprises you with the amount in which it's enlarged, and encompassed your dealings and interactions. To the point where the distance reached is well nigh astronomical in proportion so that in the end, your voice falls into dead space and is heard by none. Ghostly and spectral it floats etheral, heard only by it's source.
Ever felt that?