Khan Academy is still free, but it looks like Khan World School has actual humans.
> Much of the learning and assessment happens through in-depth discussion with teachers, peers and industry experts.
Yes, but there are real questions of self-imposed incentives and broader optics. What will the Khan folks actually be focusing on going forward? Will they be trying to pivot their Khan Academy offering into a "freebie" funnel, steering their students towards this paid-for MOOC? I'm not saying that this is going to happen, I'm just saying that many schools, educators etc. might naturally worry that it might happen and want to avoid reliance on Khan Academy as a result, perhaps staying away from it altogether.