The "multi-level" programming (simple graphical, complex graphical, text) was really neat to see. It seems like an attempt to improve on Lego Mindstorm, since

The "multi-level" programming (simple graphical, complex graphical, text) was really neat to see. It seems like an attempt to improve on Lego Mindstorm, since that's another "teach programming using robots". So that brings to mind a question: has there been any educational studies to see if mindstorms is a good program? Does it actually deliver on having kids who are interested in STEM vs. schools that don't have mindstorm? That seems to be a key study to determine if Root is even solving a real problem vs. just speculative problem solving.