You did a great job explaining that cracking your knuckles doesn't cause arthritis, using reliable sources like Harvard Health and Johns Hopkins to back up your points. While it’s true that there’s no evidence linking knuckle cracking to arthritis, it’s good to mention that it might cause other issues, such as joint swelling or reduced grip strength over time, according to UAMS Health. Adding an example like Dr. Donald Unger’s self-study, where he cracked one hand’s knuckles for years without any signs of arthritis, could make your argument even stronger. Overall, your response is solid, and including these details would improve it further!