I'm not familiar with American community colleges, but the more cost-effective forms of higher education tend to focus more on exams than classes. The education

I'm not familiar with American community colleges, but the more cost-effective forms of higher education tend to focus more on exams than classes. The education is based more on demonstrating what you have learned than on highly structured study. If I got the details right, he completed 10 years of studies in 3 years. That's impressive, especially for someone so young, but not unreasonable. Back when I was an undergrad in Finland, we had an informal definition for a high achieving student: 100 old credit units in a year, or 2.5x the nominal pace, with good grades. I knew a few people who did that at least once, and there was a newspaper story of someone who had apparently done it 7 years in a row.