WildBill

Hi, I'm a Layman when it comes to physics but I have recently reading physics books over the past couple of years. I have a rather simple question with regard to Dark Matter. Is there a simpler explanation for dark matter. Maybe it does not exist. Time. The rate of passage of time in areas of higher density of mass maybe slower than the rate of passage of time in area of lesser density of mass. Would not this explain why the Universe is expanding at an ever increasing rate. The voids between galaxy clusters are getting bigger, lesser and lesser mass. Therefore time is passing at an ever faster rate. Galaxy clusters would therefore appear to cluster together , rate of passage of time slower comparably. What do you think about that idea?