"But the whole point is that two months is NOTHING." Two months isn't NOTHING. It's just a lot less than it takes to become a world-class expert. Karate Kid

"But the whole point is that two months is NOTHING." Two months isn't NOTHING. It's just a lot less than it takes to become a world-class expert. Karate Kid wasn't going up against a pro who'd been doing it for 20 years. He was going up against another high school kid in the "all valley championship". He had some karate background and a master trainer. It may not be totally realistic, but it's not off by such a huge amount as to be "indeed not possible".