system
Answer the question or perform the task.
human
Rephrase the following sentence to make it less complex: "The necessity of having comprehensive knowledge in a multitude of fields makes it difficult for any individual to possess unchallenged expertise."
'It's hard to be knowledgeable in everything, so people can't be experts in everything.'
gpt
Because it is impossible to have complete knowledge in every field, attaining expertise in all areas is a daunting task.