My previous (failed) startup had the following plan: Identify (university-level) lectures given all across the world, for many different areas of study, that do

My previous (failed) startup had the following plan: Identify (university-level) lectures given all across the world, for many different areas of study, that doesn't change much over the years. Example: statistics. Now build a live computer-based lecture with a software architecture to live-test what you know with questions, including skipping ahead once you 'grok' something, and working your way through more examples if you are struggling. Get this right with a sizable budget. Don't just get academic experience on board, but also didactic experience. The amount of value created is staggering; lectures are very boring and relatively ineffective, professors generally want to do research instead of lecturing anyway, and they cost a bundle. Every year, how many professors around the world are lecturing statistics? Thousands, easily. The reason it failed: Video stuff is very expensive, and universities move at glacial speeds. We just couldn't get the universities to commit actual money to the project in time - and we all despised bureaucracy. I'd like to return to this idea when there I have more money and more experience some day.