tl;dr:“Senior Fatigue is characterized not by a decline in productivity but by a deliberate deceleration. The vibrant energy of younger engineers, bursting with rapid pull requests and overflowing with design documents, starts to give way to a more measured pace. At this stage, seniors might send fewer pull requests or be quieter in meetings, but this isn't an indicator of lost productivity. Quite the opposite — seniors are often finding more efficient, impactful ways to contribute, leveraging their vast experience.”