I have previously described DM as existing within a separate time stream to that of normal matter. To give this context I would suggest that the gravitational interaction of normal matter with DM might be measurable as spacetime distortion, ie: if DM is gravitationally attracted to normal matter it approaches the space occupied by normal matter while creatinging distance in time between the two subjects, ie: for DM to approach normal matter in a gravitational scenario it must embed further into a universal future.
Does this concept have merit that might be measurable against data?(one word answers will not be accepted).