The fourth little piggy built his out of leftist infighting, and the wolf was finally defeated.

One way you can know for SURE that you are dealing with a skeptic is if they think you don't know something that for sure you know, on account of the fact that you are you, and therefore have unique access to the truth.

Academic Skepticism was a school of ancient Greek philosophy that believe all things were inapprehensible, and criticized the dogmas of other schools of thought, such as the Stoics, for believing that they could come to truth by the senses or other means. They thought that judgment should always be suspended at least a little.
The comic is describing something called the Paradox of Dogma, which says that if you actually achieve true 100% knowledge of something, it can never be undo, because you would logically be required to discard all evidence against it as misleading. Take something that we believe we know 100%, that 1 does not equal 2. Below we see a demonstration that 1 DOES equal 2:

x = y
x^2 = xy
x^2 - y^2 = xy - y^2
(x - y)(x + y) = y(x - y)
(x - y)(x + y)/(x - y) = y(x - y)/(x - y)
x + y = y
y + y = y
2y = y
2 = 1

Now, even if we can't spot the flaw in this argument, we basically know it is misleading because we just know that 1 does not equal 2. Something must be wrong with it, so we just discard it (the flaw is that it divides by zero sneakily). Does this mean we discard all evidence forever though? What if there were proofs that no one could find the flaw in? Is our certainty infinite? A lot of people might say yes.
Take an empirical example though. Say we know with 100% certain that there is no tiger in the room. Using the same reasoning, we would have to discard any evidence in the same way. Even if a god damn tiger showed up, seemingly. This one seems more wrong.

Seriously though, the fact that they had to go get the "real" Excalibur from the Lady in the Lake means that the Sword in the Stone was a sort of magician's trick set up by Merlin to put his puppet on the throne, right?

Seriously though, what was Galadriel's economic policy? Seems to be a mostly leaf based economy, which is bound to fail in the long run.

Sauron is often portrayed as a force of pure domination and destruction, but that was more Morgoth's deal, Sauron was originally a student of Aule, the Smith God, and was interested in a perfectly ordered world that progressed through industry and craft. In a way Sauron was the world that came to be, organized advanced industrial capitalism (or the Soviet system, I doubt Tolkien saw too much difference) which globalizes the economy and destroys local traditions.
For more on Tolkien's political ideas you can see this excellent Ink and Fantasy youtube video on why he hated democracy.
Also, my Dad is trying to raise some money for a surgery, if you could spare a few dollars it would really help.

AI is cool because they just renamed "intelligence" to "predicted what other people might say without really understand any of it".

Actually I believe, using only logic, that I can prove once and for all that it is impossible to not waste your life...

Also, my Dad is trying to raise some money for a surgery, I already posted this before and we met the goal, but then he contracted dengue fever so the surgury had to get delayed, so we are trying to raise a little more money to cover those expenses. if you could spare a few dollars it would really help.