Human: I'd like to know what the difference is between a stutterer and someone who has a speech impediment. Assistant: 
A person with a speech impediment can have difficulty producing sounds, syllables, or words due to physical limitations in their vocal tract. A stutterer typically experiences difficulty controlling the muscles of the mouth, throat, and tongue during speech production. This often results in involuntary repetitions, pauses, and other disfluencies that disrupt fluent speech.