Originally Posted by stephanie
Well, the correct answer to a hypothetical question is almost always "it depends" and that's my answer here. Specifically, it depends on the reasons for my being convinced that 2-state can't work and whether I was also convinced that 1-state could.
My take has always been that a viable one-state solution is less possible/plausible than a two-state solution. So, if we are at the place where a two-state solution is impossible, then one would have to look at more, not less, likely options.