Thanks to the Internet, it seems like it won't be impossible for one teacher to both reach tens or hundreds of thousands of students, and effectively evaluate t

Thanks to the Internet, it seems like it won't be impossible for one teacher to both reach tens or hundreds of thousands of students, and effectively evaluate them. Economically speaking, replacing a horde of mediocre professors with a few superstar professors and a horde of really cheap machines will save a ton of money. Some of the savings will likely go into inflating the salaries of said professors to the levels of other in-demand entertainers like professional athletes or movie stars. But much of the benefits will be reaped by a much larger section of society: Lower -- and more accessible -- tuition for students (and others who help fund education like grants, scholarships and parents). Some of the displaced professors whose teaching abilities don't rise to "superstar" level will inevitably face employment turmoil in the near term as the industry consolidates, but in the long term will likely find their talents redeployed to other tasks like research, tutoring or private-sector work.