"no two people differ in learning ability" != "every child is capable of graduating". Your reply is barely related to my request for citation. And it's not cle

"no two people differ in learning ability" != "every child is capable of graduating". Your reply is barely related to my request for citation. And it's not clear to why it's complete nonsense either. Do you have some sort of data about what the cognitive needs are to graduate secondary school, and what percentage of the population lacks them? Considering real world schools have varying grades and varying tracks of difficulty from remedial to advanced, it seems like they recognize a wide range in learning ability.