[flowerbeater]

Looks like you made a calculation error or misunderstood your units. A credit hour is 3 hours of work, as a credit hour is "(1) One hour of classroom or direct faculty instruction and a minimum of two hours of out of class student work each week for approximately fifteen weeks for one semester or trimester hour of credit, or ten to twelve weeks for one quarter hour of credit, or the equivalent amount of work over a different amount of time"

So it's 2,700 hours for a 4-year degree, versus 960 hours in Lambda School, just using your method of calculation. It's also not counting the internships or summer programs that students in 4-year schools usually partake in. And it does not count extracurriculars during the schoolyear, like hackathons, interview preparation, programming competitions, student group projects, etc. Finally, you're assuming that an entire half of a college degree is geneds, which is really not the case. It's more like 1/4 geneds, 1/2 required major/concentration courses, 1/4 electives which many students opt to take technical courses in. So probably more like 3,200 (minimum) to 5,000 hours in a 4-year college.