catalytic

This term describes an agent of change that triggers a significant reaction or acceleration while remaining unchanged itself. It implies a high degree of efficiency, where a small amount of influence leads to a disproportionately large result. In social or professional contexts, it describes a person or event that sparks a sudden shift in direction or a burst of productivity. It suggests a transformative power that unlocks potential or removes barriers, making a process that was previously stalled suddenly move forward rapidly.