I get what you're saying. Think about it from the perspective of the dishonest student though - they're handed a project that does some amazing thing, and need

I get what you're saying. Think about it from the perspective of the dishonest student though - they're handed a project that does some amazing thing, and need to pass it off as their own work. Unless they have the domain knowledge around that amazing thing, they couldn't possibly have done the amazing thing, and science fair bullshitters are generally not willing to put in the time to get a deep understanding of the area their BS'd project is in. The student I mentioned had a deep knowledge of cryptography, and with that understanding and the knowledge of relevant scientific research, was able to build something new that did an amazing thing. But if he was handed that project, I doubt he would have the motivation to research crypto to the extent that he did, or be conversant with another person. And most importantly, he knew what he didn't know.