2. Did Nehemia Gordon discover the 'real' name of God?

Nehemia Gordon claims to have discovered the 'true' and 'original' Hebrew Name of the Creator, namely 'Yehovah.' He claims that this pronunciation was previously a secret for more than 1000 years!

 

The story goes that Nehemia Gordon 'discovered' the 'missing Cholem' vowel on 9/11 2001, and that this 'discovery' revealed the true pronunciation of the Name יהוה after more than a thousand years of it being a secret.

But was this really a discovery? Was the pronunciation Yehovah really a secret for more than 1000 years? Is this new information that we should act on, and change?