Overall, as a person who has enjoyed the generational advantages provided by accessible college educations, I think this plan is a Rawlsian good.

Of course, it has its flaws, such as repayment being tied to salary rather than income - and how does this work for a married couple from a tax perspective? Expect the percentages to increase and repayment to become increasingly regressive. I doubt it will curb the administrative bloat and sports subsidies and student amenities which have driven costs upward.

But at least it is a start. Schools are our greatest incubators and replicators of beneficial memes.