Constructivism is a special type of mathematics that is based on algorithmic procedures rather than on abstractly understood sets and numbers. Physical constructivism in its completed form is still a hypothetical software complex that contains all of natural science. This book explains the basic principles of physical constructivism and its special role as the future of theoretical physics. The constructive form of physics is necessary so that its methods can be applied to complex systems that formally belong to chemistry and biology. The book describes a specific heuristic for building models of constructive quantum physics - the method of collective behavior. A constructive approach to a quantum computer as a model object of many-particle quantum theory and practical considerations regarding its construction are outlined. Due to the well-known inertia of the educational system, constructive methods in mathematics remain unknown to the general physics community, and I hope that this book will stimulate the reader's interest in the new possibilities they open up. These possibilities are of great interest to both representatives of natural sciences and programmers. The book is not a final answer to the question of what constructive physics is, but rather a manifesto calling for practical action in this direction. I make this appeal to all science enthusiasts, regardless of their age. To participate in the creation of constructive physics, all you actually need is the ability to program and a love for studying Nature. To understand the content, knowledge of mathematics and physics in the first two courses of natural or technical specialties at universities or technical universities is sufficient.