Philosophical atomism is a philosophical concept that dates back to ancient Greece and suggests that the fundamental building blocks of reality are indivisible particles called atoms. The concept has evolved over time, and modern science has provided substantial evidence for the existence of subatomic particles that behave as fundamental entities.
In the context of modern physics, our understanding of subatomic particles has been greatly advanced through experimental investigations and theoretical models. Particle physics experiments, such as those conducted at particle accelerators, have provided compelling evidence for the existence of fundamental particles like quarks, leptons, and gauge bosons. These particles are currently considered indivisible in the sense that they have no known internal structure or subcomponents.
However, it is important to note that our understanding of the nature of reality is continuously evolving, and scientific theories are subject to revision as new evidence emerges. While current evidence strongly supports the existence of fundamental particles, future discoveries or advancements in our understanding may lead to further refinements of this view.
As for the existence of substance itself, the nature of reality and the philosophical question of substance are still subjects of debate. Various philosophical perspectives and scientific theories offer different interpretations of what constitutes "substance" or the fundamental constituents of reality. Some theories propose that reality is fundamentally composed of fields, while others suggest a more holistic or emergent perspective.
Ultimately, the philosophical and metaphysical aspects of these questions go beyond the realm of empirical science. They involve deeper philosophical inquiries about the nature of existence, reality, and our understanding of it. Different philosophical schools of thought offer diverse perspectives on these matters, and personal beliefs and interpretations can vary.