The processes for delivering remedial classes no longer work at the scale required. UC San Diego published a detailed report of what's happening at their campus (https://senate.ucsd.edu/media/740347/sawg-report-on-admissio...): their remedial math placement grew from 32 students in 2020 to 921 students in 2025, 665 of whom placed into an extra-remedial course covering grade 1-8 math which had not previously been needed.