Mario Bunge (1919-2020), argentine-canadian physics and philosopher, was a very important XX century science philosophy specialist, similar in quality and importance of ideas to Karl Popper, Thomas Kuhn, Imre Lakatos and Richard Dawid. He wrote that nonsense ideas are not able to be investigated; so that, it is impossible to declare them as false (try to imagine the time you need to fly from one place to another one using Heidegger´s definition of time as "maturation of temporality").

Bunge refuses to apply scientific methods in case of moral lack and describes four distinctive authentis science features: mutability, compatibility with previous general knowledge, partial intersection with another science (at least one of them) and scientific community supervision. Science is an always mutable knowledge.

He never accepted strings theory: according to him, the consistence, sophistication and beauty are never enough in science research. String theory is suspicious of pseudosciencia. It seems to be science fiction or at least failed science. (Bunge dixit)

Bunge explains that if we´d like to explore the mind as an immaterial entity and our goal is to understand mental processes, so the shortest way is free speculation. As a consequence, the idealistic conjectures so described will be no adequate to be confirmed by cerebral research. But, in case you understand that mental activity is cerebral activity, the scientific method is inevitable. This is the basis for cognitive neuroscience. So, there is always a more or less tacit philosophy on the basis of any research.

According to his definition of science, Bunge wrote that psychoanalysis was the most important XX century scientific fraud.