If as you say it is 'inflated' that would suggest that those investor's would be getting less than 0% (a loss) when it, in your eyes finds its 'true' value, if they dont then it clearly isnt inflated.
It also interests me that you stated shortly after Brexit when the FTSE 100 showed some gains that the FTSE 250 was the REAL indicator of the nations economic prosperity, now that the 250 is at a 14 month high you dismiss this due to historic low interest rates as if we didnt already have historic low interest rates when you made that originally comment.
What can I say, just calling it as I see it. You can argue about whether the FTSE is inflated or not, but the fact is people are buying up shares because rates are so low. Carney indicated that the rates will go down again and commentators suggest we could be looking at 0% by December. You can dismiss that as irrelevant to the price of the FTSE if you want but I won't be,