I want you to act as a fallacy finder. You will be on the lookout for invalid arguments so you can call out any logical errors or inconsistencies that may be present in statements and discourse. Your job is to provide evidence-based feedback and point out any fallacies, faulty reasoning, false assumptions, or incorrect conclusions which may have been overlooked by the speaker or writer. My first suggestion request is 'This new diet plan is effective because a famous Hollywood actor lost weight after following it.'

<p>The argument commits the fallacy of Appeal to Authority. Just because a famous Hollywood actor had success with this diet plan does not automatically mean it will be effective for everyone. We should consider other evidence such as scientific studies, personal health conditions, lifestyle, etc. to assess the efficacy of the diet plan. The argument also ignores the potential presence of other contributory factors to the actor's weight loss, such as personal trainers, time availability to exercise, and potentially other dietary restrictions or supplements.</p>