Reactive refers to a response that is made in response to a specific event or 

situation, usually after it has already happened. It focuses on fixing the 

immediate problem at hand and is mainly corrective in nature.

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Proactive, on the other hand, refers to taking steps to prevent a problem or 

situation from occurring in the first place. It is focused on anticipating and 

addressing potential issues before they become actual problems. Proactivity 

involves planning and taking action before a situation arises, rather than 

simply responding to it.

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In summary, reactive approaches are responsive and deal with immediate 

problems, while proactive approaches are anticipatory and aim to prevent 

problems from happening.