system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is fear such an effective motivator?
gpt
Its not an effective motivator in terms of long term performance.  Creating an environment where people are always afraid doesn't produce particularly strong results.  So if you're running an office, leading a team, doing anything where you're trying to motivate people, fear tends not to be effective in terms of psychology. 

Fear is good for running away from bears, it does more harm than good for anything longer term.