Metafisica -

(the father of modern philosophy) started from radical doubt. His famous Cogito ergo sum ("I think, therefore I am") is a metaphysical foundation: the certainty of the thinking self. He then famously divided reality into two distinct substances: res cogitans (thinking mind) and res extensa (extended matter). This is known as Cartesian dualism .

Aunque el nombre suena a algo sacado de una película de ciencia ficción o de una clase de filosofía muy densa, la metafísica es, en realidad, el intento más ambicioso del ser humano por entender las de la realidad. 1. ¿Qué es exactamente la Metafísica? Metafisica

The most famous metaphysical question comes from Martin Heidegger: "Why are there beings at all, rather than nothing?" Ontology asks: What does it mean to exist? Is existence a property? Do abstract objects (numbers, universals, laws of logic) exist outside of space and time? (the father of modern philosophy) started from radical doubt

You don't need a PhD to "do" metaphysics. Every time you reflect on who you want to be tomorrow or question the "rightness" of a situation, you are engaging in philosophical contemplation [9]. This is known as Cartesian dualism