Abstract: A computer system crawls a plurality of web pages; parses the crawled information into state events and determines causality between any two of the state events; and stores the state events and the causality in a database. The system receives a first request from a user to determine a path to a target state. The system obtains a current state of the user. The system determines one or more paths from the current state of the user to the target state based on the current state of the user and the state events and the causality, including identifying one or more recommended state events, each recommended state event having a causality value for the target state that satisfies first preselected causality criteria; and provides at least one path from the current state of the user to the target state.