I think it’s fair to classify using O(n^2) sorting as stupid (if the input size is significant). In numerical computing, using a naive routine for computing eig

I think it’s fair to classify using O(n^2) sorting as stupid (if the input size is significant). In numerical computing, using a naive routine for computing eigenvalues in O(n^4) would equally be considered stupid, unless the input sizes are known to be small of course.