Joshua Gross’s Reviews > A Place Both Wonderful and Strange: The Extraordinary Untold History of Twin Peaks > Status Update

"...was actually a deliberate hint that The Return was unfolding across parallel universes or multiple time lines. (For the record: “No,” says Duwayne Dunham.)". This was dumb. There's no reason to refute this fan theory, it works better to just leave it open, I do that a lot in my own writing.