I'm still onboard the flashback train
My reasons: the story of William and his pal is very similar to the story of the movie, it feels to me like a way for the show to acknowledge the movie and bring it into the show. William is present at the first disaster and survives. But what happens next?
In William's time, Thandie Newton does not seem to be the Madam, she is never seen. The other hooer seems much more assertive and Madam like. Remember "she's played that role before". People talk about how Dolores and Teddy have been playing the same roles for 30 years...so what? No one said that everyone has to switch around.
The logo stuff and the stuff about the different methods of building the robots.
The end of that last episode is a spanner, no doubt about it but that scene was weird. It was framed as this duh duh duuuuuuuuh momentous development, like they knew how it would be interpreted by us nerds. But really, it proves nothing. Dolores timeline is all fucked up in how it is presented. What happened to the gun? When did that happen? Was she remembering the gun? Is that why it disappeared? If so, then the gun was in the past.
Another problem though is that if there was a big disaster in the past, why doesn't anybody seem to know about it? Wouldn't the guests worry about it? Not sure how to reconcile that.
Talking more widely about the themes of the show, the point of it seems to me not to be about "what happens when AI goes wrong" but "at what point do we respect AI as living consciousness". Ford says they don't feel anything but what we tell them to feel. But we know that isn't true, right? We know Dolores has gone beyond that at least (at some point).
I also expect to discover that some of the staff (perhaps all of them?) are also hosts. They just don't know it. Barnard in particular.