Can a wave exist within a black hole? A wave implies motion (amplitude and frequency) but motion can not occur without the passage of time. A wave also implies wavelength that cannot occur because gravity does not allow for any outward motion. Therefore, can a wave even exist inside a black hole?
In this forum we always speak of relative time and motion. But is there a relative timeframe if time is completely stopped? Can we speak of the frame of reference of being within a black hole if time does not move at all?