On the Rational Boundary of the Scientific Falsifiability Principle

The statement that "scientific theories are falsifiable" is a core demarcation criterion established in the philosophy of science in the 20th century. After being systematically proposed by Karl Popper, this principle has gradually become a widely accepted foundational consensus in the scientific community, effectively distinguishing scientific theories from non-scientific assertions. However, in current academic discussions and public scientific discourse, this principle has been infinitely amplified and wantonly abused. Numerous blind doubts without substantive basis, logical support, or factual contradiction have been raised under the pretext of "science is falsifiable". This not only violates the original intention of the falsifiability principle but also undermines the foundation of the empirically established scientific knowledge system. This paper traces the origin and core connotation of the scientific falsifiability principle, clarifies the necessary prerequisites for falsification, defines the rational applicable boundary of scientific falsification with classic empirical conclusions such as Newtonian mechanics, the DNA double helix structure, and the inverse-square law of universal gravitation, and points out that falsification is by no means unrestricted skepticism: it must be based on factual contradictions, logical flaws, and empirical counterexamples. Within a given scope of application, scientific conclusions repeatedly verified by massive experiments and practices possess unshakable empirical truth. Forced unfounded falsification will only lead to the collapse of the scientific system. Only by adhering to rational, bounded, and evidence-based falsification can we conform to the essence of the scientific spirit and promote the sound development of scientific research.