Question: Has Elon Musk's hairline changed?, Answer:Yes, Description of Elon Musk: American industrialist and investor, Fact1: When Elon Musk was much younger, he was clearly balding., Fact2: Elon Musk does not show any signs of balding as of 2020.
Step1: What feature of Elon Musk's hair was notable when he was younger?, Step2: Is #1 no longer observable in present times?, Wikipedia page for step 1: Elon Musk, Wikipedia page for step 2: Elon Musk, not_definitive_answer: False, incorrect_answer: False