Is it integral to the scientific method that key ideas should be subject to falsification? If we answer "yes," what are we to say about string theory, or the multiverse interpretation of quantum mechanics, etc.? Here is a discussion of a discussion of a discussion. https://blogs.scientificamerican.com/the-curious-wavefunction/falsification-and-its-discontents/ And that's an illustration of a "popper" above. Get it?