I wonder if this is a skill that must be learned before a certain age, something like what happens for learning a language [0] and possibly learning the natural

I wonder if this is a skill that must be learned before a certain age, something like what happens for learning a language [0] and possibly learning the natural numbers [1]. It is also interesting that they have learned to be able to solve problems that require mentally rotating shapes. [0] https://www.ncbi.nlm.nih.gov/books/NBK11007/ https://www.ncbi.nlm.nih.gov/books/NBK11007/ [1] https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.586.2157&rep=rep1&type=pdf https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.58...