what cana be replacement of state machines

hi. i recently read a article on http://aigamedev.com/open/article/fsm-age-is-over/ that says age of fsm is over. i always for implementing of behavior of my ai use state machines but can really it be used replaced with other kind of programing. in advanced best developers on AAA games use state machines or it canbe something compeletly different? thankyou for helping


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