Perhaps tiime to realise your limitations? I think now it is Sunday morning you will know if it is at all possible - or if it is time to give in gracefully.

Commiserations or good luck - whichever way it goes

But all joking aside, I think you should keep the explanation in-line with how the rest has gone.

Have you explained other things in detail, are there any other questions left up to the reader, is it all hinging on a specific answer?

Personally, I would love to have to make up my own mind. But if there is none of that already, then there is no need for it now - unless you are building and building, and then leaving the reader going, "Hang ooooooon." - in a good way ;)