Potential reason it's rational: The shoulders of those giants are higher than ever before. Climbing to those heights is correspondingly harder to do. Speaking

Potential reason it's rational: The shoulders of those giants are higher than ever before. Climbing to those heights is correspondingly harder to do. Speaking for myself, I had to worry very little about computers until late in high school (Senior year, specifically). There were no spreadsheet or word processing classes, and the typing classes were only for the girls. There was Algebra (up through Calculus as an optional course), but many others that my niece has that I didn't.