Historians of science trace the modern ecological crisis not to the Industrial Revolution, but to 1543 — the year Copernicus repositioned the cosmos and Vesalius dissected the human body as a mechanical object. That double rupture, as environmental historian Lynn White argued, planted a seed: nature is a system to be mapped, measured, and mastered. Not a community to belong to. A resource to extract from. That philosophical shift, Alan, is still running the world. While the technocratic paradigm was discussed previously as a mechanism of environmental and social issues, But every pathogen needs a host. Modern anthropocentrism serves as the philosophical host: the belief that humans are entitled to dominate nature without limit. This is not the same as recognizing human dignity. That distinction matters enormously. Laudato Si' is precise here: the problem is not that humans are valued highly, but that they have adopted a self-centered position focused purely on power, no longer recognizing their proper place within the world. This philosophical error leads to ethical irresponsibility. Treating nature as mere raw material results in a use-and-discard mentality. And that logic does not stop at rivers or forests. It reaches people. Anthropocentrism, the encyclical argues directly, produces practices like the exploitation of children, the abandonment of the elderly, slavery, human trafficking, and the discarding of the unborn. These are not separate moral failures, Alan. They are the same failure, applied consistently. Here is where the argument gets philosophically precise. Some respond to anthropocentrism by swinging to biocentrism — placing nature above humans, treating all species as morally equivalent. Francis rejects that move. It simply replaces one imbalance with another. The real correction requires what the encyclical calls an adequate anthropology: a true account of what humans are. When humans are reduced to one species among many, or to products of chance, the sense of moral responsibility collapses entirely. Human beings cannot feel responsible for the world unless their unique capacities — knowledge, will, freedom, conscience — are genuinely recognized and honored. So here is the core insight to carry forward, Alan: a distorted view of human dominion has not made us more powerful — it has made us less responsible. The ecological crisis is not the price of human greatness. It is the consequence of a philosophical error: mistaking domination for dignity, and utility for value. Recovering our ethical responsibility toward non-human life and toward the marginalized begins with correcting that error at its root.