I pitched a similar idea in an interview years ago in an interview (http://www.wearegamedevs.com/2016/01/20/scott-anderson-rende...) with the added complexity of forward simulating past events with different choices. I was asked what I would do with infinite time and money though. To this day my elderly parents tell me to quit my job and work on this idea :-D.
I do believe that past time travel to reconstructed and recorded events will be one of the stickiest use cases for VR.
I do believe that past time travel to reconstructed and recorded events will be one of the stickiest use cases for VR.