Leon on Everything

Brutus orchestrated a plot to assassinate Caesar. One might think that he could have done otherwise - he could have had a change of heart; he could have remained loyal to Caesar, etc. But, according to Peter Van Inwagen (a twentieth-century Philosopher), if the laws of nature that govern our world are deterministic, then Brutus could not have done otherwise. First, let’s define our terms. Determinism is the idea that the universe unfolded in a completely predictable manner to some observer who is outside the universe. In other words, the initial state of the universe made sure that all subsequent states will occur. If you were to replay the tape of the universe, it would unfold in the same way. And this is due to the laws of physics that make sure that whatever happens will follow then and happen in the same way. We note that the predictability is to an outsider of the universe, as an agent in the universe would be able to predict its own actions and not take them, thus producing...

A stunning conclusion of 20 th -century philosophy is that there are properties in the world that are not amenable to scientific exploration. This conclusion sprang from the study of consciousness. We are all conscious, or so we believe. But this consciousness, this experience of being each one of us has so far escaped science. In fact, from a scientific perspective, it is just easy to imagine a functional human being without consciousness. The latter notion of a nonconscious functional human being is known as a Philosophical Zombie or P-Zombie. Such a P-Zombie as the thought experiment goes, acts just like a functional human being but doesn’t have consciousness. And from the perspective of science, it is impossible to tell the difference with a conscious human being. But what is consciousness? Frank Jackson, a 20 th -century philosopher, in one of his seminal papers, introduces this notion of Qualia. Qualia is the feeling that we humans (and probably animals) have of...