What seems to be the issue is that science has traditionally excluded life from the equation of studying physics, chemistry and biology, considering things in no more than physical or chemical reactions. For us religious folk, the afterlife seems so evident, a part of revelation and our desire to transcend the material world. It is usually for us a matter of faith and belief.
The afterlife entering the realm of science is an interesting development, and can only encourage us in our quest for the transcendent. Is time only something subjective? My having had the experience of general anaesthesia for a surgical operation a couple of years ago blew my mind. I didn’t experience the time during which I was “under”. The anaesthetist told me to count up to ten, and an instant later I woke up in the recovery room. If time is only subjective, then this has enormous implications.
I can’t vouch for Dr Lanza’s theory having any scientific validity according to the rules of evidence and repeatability. But, I have to admit that I’m fascinated….