Using his crazy system, one could create a login page that could not be cracked without physical access to a physical paper card. Using a simple 4 digit code, you can securely authenticate yourself. Even someone with complete access to 100% of the information on your system, even for a long period of time would be incapable of getting past the login page.

It's truly a simple but super powerful system. Assuming there is no physical access, there are 16.7 million possible combinations per login that change after each successful logins. The paper password here is around 16.7 times more powerful than the key dongles that paypal has been giving out.

Nifty, no?