>Groups of 20 families hiring an instructor i.e. "ye olde one room schoolhouse" The online resources just mean that a single instructor is more efficient/effe

>Groups of 20 families hiring an instructor i.e. "ye olde one room schoolhouse" The online resources just mean that a single instructor is more efficient/effective by leveraging the work of external specialists and can carry students into depths of subjects that were not attainable at that scale a century ago. Your great grandfather may have had to go to college to learn science and math beyond the basic stuff. Today a generalist teacher can leverage everything from a lesson plan to a virtual lecture prepared by teachers who specialize in teaching those subjects.