Fuller-like optimism for the ability of computers to soften the boundaries between humanities and mathematics, to avoid "school math" planting the idea that "I don't have a head for math". How important it is that learning occurs by children constructing worlds inside their heads that they can relate to bodily experience and can manipulate themselves. An expansive view of what children can learn at an early age if given the concepts of procedure and system, and that debugging your thinking wins over being told your answer is right or wrong.