Summary
This quote suggests that the cutting-edge discoveries and advancements in science have moved from the periphery of knowledge to become the focal point. In the past, the "frontier" of science represented unexplored or less understood areas, but now these areas have transformed into the "centre" of scientific exploration and progress. It highlights how our understanding and capabilities have evolved, with advancements reshaping the boundaries of potential scientific breakthroughs, making those once unknown frontiers now the core of scientific development.