A.:
I think I remember that spot in the interview. My impression was that it sounded like Sparks was getting tired. That struck me as odd as well, but I was listening live, so I let it go and moved on with the interview.
Here's my recollection of the Nazi reference having to do with the "why me" explanation: I believe he alleged that the ET's had shown him various images going back in time, of people who he claimed looked like him. There was the guy in Germany who was fighting for the Nazi's, and then a guy in medieval times that got drunk at a wooden table, and then a guy during the Roman era watching a Senate debate...I think he made a few more references until he finally got to ape-man creatures, who apparently were his/our long lost missing link. That led Mr. Sparks to a panspermia-type explanation...That ET are our creators essentially...Art Bell loved that.
Back to my evidence-gathering point: It would seem to me, that some of these holograms described by Mr. Sparks, can be cross-referenced. Since Mr. Sparks remembers these experiences in such extremely vivid detail, then it should not be a problem for someone to isolate specific information about these holograms, perhaps under hypnosis. That evidence can be cross-referenced with historical records. A researcher could identify consistencies, or inconsistencies, with Mr. Sparks movie-like references to past historical events.
There's lots to be investigated, isn't there...
Something strikes me about the Sparks reality...I'm trying to put my hands around it. It's not a pandoras' box...It's the opposite. I know there's an anologous word or object to fit with my sense of this explanation, but I can't think of it off-hand...Everything Mr. Sparks discusses seems to neatly cover every topic in the paranormal field...All things considered in this arena, all things imagined, are touched upon by Mr. Sparks. All the what-ifs are provided for, and satisfied. Everything ties together in his world. I find that terribly seductive, don't you?