Take the 2-minute tour ×  Well, it does according to this
preprint for certain scales.  What would be a simple way to
explain MOND to a layman?  Does it ignore mainstream physics?
How much?  share|improve this question Related:
physics.stackexchange.com/q/6561/2451 and links therein. – 
Qmechanic Dec 7 '13 at 18:03 add comment  3 Answers  The basic
version of MOND pretty much only attempts to explain the
rotation curves by postulating a modification of Newtonian
gravity at accelerations smaller than a_0, and does a good job
at that. However, many other observational facts (cluster
dynamics, stability of spiral galaxies) still require large
quantities of dark matter, as acknowledged by proponents of MOND
themselves. The Bullet Cluster is the most dramatic evidence
that some form of dark matter must exist and does not
necessarily trace the baryonic matter distribution.  In regards
to its relationship with physics: MOND does not attempt to
reconcile with General Relativity, so it cannot do calculations
regarding