The reason N5 came together for TSMC is because they run more experiments per unit time than Intel does. They're doing this 24 hours a day across multiple shifts, which makes it possible for them to improve a given process faster. It remains to be seen if Intel can actually pull ahead or not without a major culture change, or if "this time" they can succeed at becoming a trusted foundry partner that can drive enough volume to support the ongoing investment needed in leading edge fabs.