Except
I was The Nerevarine, and I know I'm not Talos.

I was a diplomat Telvanni mage-lord Nerevarine.
I united the Houses and Ashlanders and even made peace with the rogue Ahlanders. (Got their disposition to 100 to make them non-agressive.)
I deposed Orvas Dren, removed Camonna Tong influence from the Fighters Guild and formed an alliance with the Thieves Guild.
I also 'removed' every Camonna Tong from Vvardenfell.
There is
no way my demi-god of an Altmer, who studied under Divayth Fyr and Baladas Demnevanni, would have let Baar Dau fall.
He wouldnt leave for Akavir in search of adventure, abandoning the people and land he loved.
Unfortunately canon history states the Thieves Guild was wiped out by the Camonna Tong, Baar Dau fell and most the Great Houses were destroyed, including my beloved Telvanni.
There really isnt anything we can do when it comes to affecting the future as it will turn out to have happened, that is up to Bethesda.
Thats why they keep it purpously vague so as not to upset people too much, but a little is inevitable

Though in hindsight I agree with the destruction of Morrowind because of http://en.wikipedia.org/wiki/Apoptosis.