On K.R.Popper’s Theory of Scientific Progress

K. R. Popper think that the spirit of science is criticism, and science is constantly-made rational hypothesis which is constantly criticized, that is to say, falsified. Hence, the line of demarcation between science and non-science posed by K. R. Popper is not confirm principle underlying logical positivism, but his falsification principle according to which, Popper expressed his views of truth that scientific progress should be measured by fidelity instead of truth. From his principle of falsification, Popper eventually establish his guess-refuting methodology.