It definitely seems true, in my experience, that one-on-one tutoring achieves educational outcomes far superior to traditional classroom learning. However, I am wary about the ability of technology to scale this up. One-on-one tutoring is more than just providing a customized curriculum and the expertise to answer any questions the student has.<p>A huge part of learning effectively is developing the right habits. The startups in the article are not really focusing on that, probably because it&#x27;s the type of thing that people usually learn indirectly through social interactions (e.g. a child emulating their parent). I also believe much of the value of a tutor lies in the social connection with the student, providing them with someone to model their learning habits after as well as someone to keep them focused and motivated.<p>I think this social aspect of teaching is very hard to capture with technology, sort of like how it&#x27;s hard to learn a language without living in a country where everyone speaks it. Technology can help, but I feel it will be more like a 0.2 sigma improvement rather than 2 sigma.