Can one doubt their own existence in the world while simultaneously doubting the existence of others? If one's being isn't present because they aren't present themselves, wouldn't that make it illogical to doubt other people ontological presence or existence because your influence on others is already within the pool of doubt?, according to Cartesian philosophy?
For instance, would it be logical, from a Cartesian perspective, for someone (let's call him A) to doubt his own existence while also doubting the ontological presence of others in the world?
- "A" doubts his existence.
- "A" questions existence as existence.
- "A" doubts whether the person he interacted with has ontological presence, whether it's true or not.
But wouldn't propositions 1 and 2 oppose proposition 3? If "A" doubts his own existence, it implies doubt in existence itself, making it logically challenging for him to doubt the ontological presence of others. Descartes introduced a skeptical method called methodological doubt or metaphysical skepticism, leading to the undeniable fallibilistic insecurity of our knowledge and the world around us.
If "A" is epistemically insecure about his existence, then he must also be epistemically insecure about his surroundings. His phenomenological perception becomes irrelevant, as doubting himself implies doubting the surrounding. Wittgenstein argued that qualia are limited within a peripheral "place," meaning phenomenological consciousness can't experience beyond its own limits. Wittgenstein used conceptualistic, intentional, and semantic inferences, as well as the pragmatic use of language, to explain this limitation.
So, from a Cartesian perspective:
- Would it be logical for someone to doubt their existence and then doubt the ontological presence of others?
- If "A" already doubts himself, wouldn't he be limited phenomenologically, contradicting Wittgenstein's postulate? How could he doubt others' existence while having such limitations?
- Did Descartes ever provide an explanation for this, and how does it make sense from a Cartesian viewpoint? And how would he respond?