Alloe:
I feel obligated to admit I'm not a huge fan of the type of methodological skepticism that Descartes presents in his First Meditations, and I am hugely biased against him (sorry!). For those who don't know what Descartes' methodological skepticism is, it refers to the time when Descartes (French philosopher with a great stache who lived from 1596-1650) essentially sat in front of a fireplace and tried to determine what things he could be absolutely certain exist. He did this by believing that something must be wholly false if it admitted even the slightest doubt. At the end of his meditation, Descartes determines that one can only be sure of himself—of his own conscious existence since he cannot cast doubt upon the act of him actively doubting, and famously coins the term "I think, therefore I am." In this meditation, Descartes famously offers reasons to doubt even our most basic sense perceptions (e.g. I am sitting on a chair right now) and even simply analytical statements like 2+3=5. He further encourages one to doubt even the most trivial of statements, such as 1=1.
My contention is this: if Descartes is able to doubt even the simplest logical statements or tautologies, how is he able to have any certain confidence in his own chains of reasoning? The arguments that lead him to the famous conclusion "I think, therefore I am," are just that—arguments, counterarguments, examples, and analytical statements. A priori, he's accepting his own methods of reasoning and arguments as absolutely certain. If he is to doubt the truths of logic and mathematics, shouldn't he doubt his chains of reasoning? Are they not the same thing? A+B=C? In other words, in Descartes' terms, under hyperbolic doubt, he is only warranted in beliefs that are grounded in intuition, not deduction. So, he can only know for certain those things that are self-evident. He cannot be sure of any inferences on the basis of what is self-evident. Doesn't this threaten the project somewhat?
Perhaps one would argue that being able to reason at all (whether it be logical or illogical) is itself his proof of existence. I don't know. I feel like there's some sort of contradiction lurking here.
Anyways... past my spite for Descartes (...why is he so famous for this meditation...it has so many holes...), I do think there is always value in doubting all basic principles. Doing so allows one to delve deep into themselves and find things in which they truly believe in while trying ones best to eliminate bias. Isn't that the point of philosophy and questioning itself—to provide certainty? However, I think doubting, at least in excess, can lead you to a vulnerable mindset. Trying desperately to find true meaning, order, and significance in life while casting doubt on all that you know opens you up to being taken advantage of.
A few days ago, I did some deep-dive reading on controversial "Self-Help" YouTuber Leo Gura, who is the creator of Actualized.Org. He studied Philosophy at the University of California Irvine and now has a YouTube account where he spends much time speaking on how it’s important to cast doubt on all things. He states by doing so, he has discovered that there is no proof that anyone else but he himself exists (solipsism), morality is a farce, life is essentially meaningless, and that all time is circular.
In a response to his “self-help,” a number of people hurt and even killed themselves as a way to transcend this reality and wake up in another. This is all to say that though I do find value in doubting one's own beliefs and basic principles, doing so may put you in a vulnerable state of mind, and such is easy to take advantage of. I find “self-help” to be a good example of this; a place where large groups of people are willing to cast doubt upon their current actions and modes of thinking as a way to genuinely be better while their ignorance is being preyed upon truly is a brewing ground for some of the most dangerous things. Overly existentialist and doubtful thinking paired with extreme pessimism can make one susceptible to Sade ideologies / similar modes of thought to that of Gura, especially responding to doubt with ideas of knee-deep religion and ascension.
I digress. This is extremely pessimistic—I do agree it’s completely necessary to cast doubt upon your own conjectures to ensure a variety of perspectives and reduce potential bias. However, casting doubt onto things that form the basis of your reality (conception of self, morality, time, etc) can and has been detrimental. There’s probably a fine line somewhere.
Andreia:
I think, insofar as you're not meditating for three days in front of a fireplace while bordering off a psychotic break, it's not even possible to cast doubt in excess. Following Allison, a piece of advice would be to use methodological skepticism in areas where you want to explore your uncertainty..don't just..make yourself uncertain for the sake of it. At that point, it's time to touch grass, Rene would've benefitted from this greatly <3