I never flip flopped. There are many plausible time-frames for when chess can be solved based on current knowledge. But they don't agree with your assertion that "chess can never be solved". I'll show you again a Venn diagram why 18 years is plausible, because it is within the known range of when chess might be solved:

Yes...I would. Why have you changed positions 3 times now? From a couple of decades (~page 60), to 200 years (~page 110), to "it may never be solved" (page 225)? Why is your position now essentially in agreement with *my* position, yet somehow you think you can pretend you've held this position all along? And, if you believe that the possible spectrum of solving chess runs from 1 year to "never", what do you realistically think the chances are that it will happen in the first 18 years of such a vast timeline? Because until you stop hemming and hawing, that is your last concrete analysis on the subject. 18 years.
Your only attempt at analysis was severely flawed, and your non-committal stance now is face saving, nothing more.
However, since you claim your stance now is that chess may never be solved, I will remind you of this next time you choose to flip-flop again.