Physics is experience, arranged in economical order.

In the quote by Ernst Mach, "Physics is experience, arranged in economical order," Mach suggests that the study of physics is essentially a way of organizing and understanding our experiences of the natural world in a structured and efficient manner. He emphasizes that physics doesn’t create new experiences but rather seeks to arrange those experiences in a logical, economical way, allowing us to make sense of them. The goal of physics, according to Mach, is not to complicate the world, but to simplify and clarify it by finding patterns and laws that can explain the vast array of phenomena we observe.

The origin of this quote comes from Mach’s work in the field of philosophy of science and physics, where he played a significant role in shaping ideas about empiricism and the scientific method. As a physicist and philosopher, Mach was known for his belief that all knowledge is rooted in direct experience and that theoretical models should be based on observable facts rather than abstract assumptions. His view of physics as an economical arrangement of experience reflects his desire for simplicity and clarity in understanding the world.

Mach’s statement also highlights his empiricist perspective, which holds that knowledge is derived from sensory experience and that any theories or models should be grounded in real-world observations. In this sense, physics is not about creating complex, disconnected theories but about organizing what we know in a way that makes the world more comprehensible. The idea of economy suggests that the simplest and most efficient explanations are often the most valuable.

Ultimately, Mach’s quote emphasizes the importance of simplicity and efficiency in scientific inquiry. It suggests that the true beauty of physics lies in its ability to take the complexity of the world around us and arrange it into clear, understandable principles, offering us a way to navigate and comprehend the universe in a manageable and practical way.