I think the pricing may be off a bit, but this is an excellent idea for a couple of reasons. First, the super-memo algorithm has been proven effective for more

I think the pricing may be off a bit, but this is an excellent idea for a couple of reasons. First, the super-memo algorithm has been proven effective for more than 20 years, and can be very effective for building a wide base of programming knowledge. Second, much of learning has to do with cognitive load. Having a wider knowledge of the capabilities of a language can reduce the cognitive load of solving individual problems. Compare the ease of solving fizzbuzz with modulo vs a home brewed solution. If the system can assist in building a base of concepts then it might make individual tasks easier.