Ethical questions are often considered impossible to answer scientifically primarily because they are influenced by personal views. Unlike scientific inquiries, which rely on empirical evidence and objective analysis, ethical dilemmas involve subjective judgments about what is right or wrong, and these judgments can vary widely among individuals and cultures. Consequently, ethical considerations often encompass a range of beliefs, values, and moral philosophies, making them difficult to resolve through scientific methods alone.
While costs, time, and the need for interdisciplinary approaches can complicate the investigation of ethical questions, the fundamental reason lies in their inherently subjective nature.