If someone cracked the hash algorithm, or found a cheaper way to compute it, they'd make a lot of money, difficulty would go to the moon, but the rate of Bitcoin creation would not increase. Just like when ASICs came in.
Think way beyond that... if you can.
For lack of a better example: my gripe is that this is a bit like Windows 98 security: You can set a login password and it gets encrypted satisfactorily... but to bypass the login password, you simply needed to press ESC at the right time. So, you think, if you press the right buttons, you don't need to sign a transaction with your private key?
That exactly shows, that you have no idea what you are talking about.