Captcha in Critical System (IMAGE)

Max-Planck-Gesellschaft

Captcha in Critical System

Caption

Indecipherable for computers: the Captcha with the password is very grainy, as it is generated in a physical system close to a critical change of state (left). In a chaotic process, it is made completely unreadable. The process can be reversed with an easily remembered password, however.

Credit

Sergej Flach / MPI for the Physics of Complex Systems

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