Autodynamics never gained status as a viable alternative model within the physics community, and today is wholly rejected by mainstream science.
This exchange between mass and energy is the proposed mechanism underlying most of the derived conclusions of autodynamics.
[1] A 1999 article in the magazine Wired quotes H. Pierre Noyes, a professor at the Stanford Linear Accelerator Center, as stating, "autodynamics was disproved.
Special relativity is correct" and noting that "mainstream physicists have considered autodynamics a crackpot theory for decades".
[4] According to Lee Smolin, there has been "no serious attempt [by the autodynamics supporters] to make an argument or to discuss experimental data that refute their basic claims".