Lambda (the cosmological constant) is frequently refered to as a sort of "negative gravity": instead of attractive it's repulsive, and instead of getting weaker with distance it gets stronger. However in General Relativity gravity is not regarded as a true force, but just as the manisfestation of spacetime's geometry on the movement of matter and energy. 1. Is lambda a true force or just a geometrical distortion like gravity? If a true force, is it expected to have a carrier particle associated? 2. Does lambda act on matter/energy, or on the fabric of spacetime itself? (would a region of spacetime devoid of any matter/energy stretch due to lambda? or only if it contains matter/energy?) 3. How the hell can we conceive of any influence that gets stronger with distance? Is not distance, by definition, a concept that "separates"? that makes 2 points in spacetime less likely (or needing longer time) to influence eachother? What could be a conceivable mechanism that allows lambda to have a stronger interaction with something distant than with something close? 4. Is lambda's influence supposed to propagate at the speed of light?