As we shall see (Section 5 and 6), MOND was constructed to predict a relation a = V4∕(GM ) 0 f for a point mass M (however, note that the slope of 4 is a pure consequence of the acceleration base; it is not possible to get an arbitrary slope from such an idea). Since spiral galaxies are not point masses, but rather flattened mass distributions that rotate faster than the equivalent spherical mass distribution [52Jump To The Next Citation Point], the empirical acceleration a is close to but not identical to a 0 in MOND. The geometric correction is about 20% so that a = 0.8a 0 [272Jump To The Next Citation Point].