CET classifies as infeasible functions whose most efficient algorithms have time complexity which is of super-polynomial order of growth inclusive of, e.g., \(2^{.000001n}\) or \(n^{\log(\log(\log(n)))}\). However, such algorithms would run more efficiently when applied to the sorts of inputs we are likely to be concerned with than an algorithm with time complexity of (say) \(O(n^2)\).