In Chomsky's nativist view, what are 'Virtuous Errors'?

In Chomsky's nativist perspective, 'Virtuous Errors' refer to errors made by children that arise from a misunderstanding of grammatical rules they are in the process of acquiring. These are not random mistakes but reflect the child's logical reasoning about the language rather than a failure to learn. For instance, a child may apply a regular grammatical rule incorrectly, demonstrating their attempt to generalize the language rules they have observed. This indicates that the child is actively engaging with and testing their understanding of language structures, showcasing an innate capacity for language development rather than simply mimicking what they hear. This concept aligns with the nativist view that children have an inherent ability to learn language and that their errors serve as insight into their cognitive processes in acquiring language rules.