BTW, looked at several reviews of Replay and read a plot summary - it's very similar to my first novel, A Familiar Rain, which I began in 1980 and finally finished in 2013 - the exception being that my novel was more technical relying on neurosurgeon Wilder Penfield's work. I personally have read many time novels that transport people back in time relying on a simplistic trope like a bump on the head or a dream - that doesn't cut it for me. I want something plausible. And I realized Iactually did start to read the Replay novel once but didn't find it suitable for my taste. IMO, Time and Again is much more plausible - akin to Matheson's Bid Time Return. Yeah, I'm kind of obsessed with time...