Molyneux's problem posed in 1688, asks a question: is a born-blind person that regains sight capable of distinguishing between a sphere and cube by sight alone? Modern results show the answer to be no, where they were not able to connect their understanding of the object through touch with their visual sense of the object. This counters our innate intuitions, where we strongly feel that a cube that has corners should be obviously recognisable to someone who has regained sight, since they nonetheless understand the properties a cube. Though, it highlights the large amounts of learning that took place during the [[Piaget's theory of cognitive development|earlier stages of cognitive development]] that we take as being so normal, that the notion of it being a learnt property feels strange. --- TODO: * cite modern results with that study from India