Epistemology

Key people

• Plato4th-century BCE Greek philosopher
• Socrates5th-century BCE Greek philosopher
• Immanuel KantGerman philosopher (1724-1804)
• René DescartesFrench philosopher, mathematician, and scientist (1596–1650)

Timeline

• 391 BCEMozi (470–391 BCE) proposed a pragmatic approach to knowledge using historical records, sensory evidence, and practical outcomes to validate beliefs.
• 347 BCEIn ancient Greek philosophy, Plato (427–347 BCE) studied what knowledge is, examining how it differs from true opinion by being based on good reasons.
• 289 BCE372–289 BCE) explored analogical reasoning as a source of knowledge and employed this method to criticize Mozi.
• 220 BCE310–220 BCE) aimed to combine empirical observation and rational inquiry.

Read

• EpistemologyRobert Audi · 1997Book
• Steps to an ecology of mindGregory Bateson · 1972Book
• Introduction to Objectivist EpistemologyAyn Rand · 1967Book
• Epistemology of the closetEve Kosofsky Sedgwick · 1990Book

Watch

• Epistemology | Meaning and Problems of Epistemology | Philosophy SimplifiedYouTube
• PHILOSOPHY - Epistemology: Introduction to Theory of Knowledge [HD]YouTube
• Epistemology in Philosophy Simply Explained (Past to Present Day Theory)YouTube
• Epistemology | Knowledge and it's Definition | Part 1 | Sem 6 | #philosophy #epistemologyYouTube
• Overview of Epistemology (part 1)YouTube
• Beginner's Guide to Kant's Metaphysics & Epistemology | Philosophy TubeYouTube
• Justified True Belief & The Gettier Problem (Epistemology)YouTube
• Metaphysics, Epistemology and Axiology - Branches of PhilosophyYouTube
• What is Epistemology?YouTube
• Metaphysics vs. Epistemology Easily Explained - What is Metaphysics & What is Epistemology?YouTube

Listen

• Epistemology and Philosophy of Science: Prof. Dr. Stephan Hartmann – HDLudwig-Maximilians-Universität MünchenPodcast
• Philosophy for BeginnersOxford UniversityPodcast
• The Street Epistemology PodcastStreet Epistemology InternationalPodcast
• EPISTEMOLOGYkarla martinezPodcast

Voices to follow

• Pascal Nouvel@PascalNouvel · XFrench writer
• Nelson Maldonado Torres@nmtorres7 · XProfessor of philosophy
• Ted M.@Tedmnotes · XCanadian writer, independent researcher, and gardener
• Aladdin MalikovYouTubeAzerbaijani researcher of philosophy

Debates

• Is knowledge primarily gained through experience or reason?One view: Empiricists argue sensory experience is the primary source of all knowledge. · Another: Rationalists contend that reason and innate ideas are the fundamental sources of knowledge.Open question
• What distinguishes a justified true belief from mere true belief?One view: Justification requires internal mental states or evidence accessible to the knower. · Another: Justification depends on external factors, like reliable processes, regardless of the knower's access.Open question
• Can we ever be certain of anything, or is all knowledge ultimately fallible?One view: Skeptics argue that absolute certainty is unattainable, and all beliefs are open to doubt. · Another: Anti-skeptics maintain that we can achieve genuine knowledge and certainty in many areas.Open question

Glossary

• KnowledgeJustified true belief in a proposition.
• BeliefA mental attitude of accepting a proposition as true.
• JustificationThe reasons or evidence supporting a belief.
• TruthCorrespondence between a proposition and reality.
• EmpiricismThe view that knowledge primarily comes from sensory experience.
• RationalismThe view that knowledge primarily comes from reason and innate ideas.

Careers

Roles this can lead toward

Threads 7

Where this connects to other fields — and why it's worth knowing.

• Artificial Intelligence & Machine Learning Technology

  An AI will tell you it's 99% sure of an answer that's completely made up. Engineers now test whether a machine's confidence actually matches how often it's right, and they call it 'calibration.' It's a high-tech version of an ancient puzzle: the difference between truly knowing something and just strongly believing it.

• How Beliefs About Learning Shape Teaching Education

  Do you learn by having facts poured into your head, or by building understanding yourself, brick by brick? A teacher's answer secretly decides how they run the whole classroom. That question is pure philosophy about how anyone knows anything, sneaking into lesson plans in disguise.

• Algorithms & Computation Mathematics

  There's a proof that no computer program can ever reliably tell whether another program will run forever or eventually stop, called the halting problem. It means some things are true but no step-by-step method can ever confirm them. And since any careful 'method' of knowing is basically a procedure, the limits on computers are also limits on what anyone can ever know.

• Scientific Instruments & Measurement Science

  You glance at a thermometer and think you're just seeing a fact. But you only trust it because you already believe a whole theory about how heat makes liquid rise. Every measurement quietly carries hidden assumptions inside it. There's no such thing as 'just looking'; observation always comes soaked in ideas you're taking on faith.

• Generative AI & Large Language Models Technology

  An AI chatbot fires off confident, smart-sounding answers without actually caring whether they're true. A philosopher had a word for talking like that, not lying, just not caring about truth. The AI turned that into a factory setting, which is exactly why sounding right and being right can split apart.

• Prime Numbers Mathematics

  There's a clever trick called a zero-knowledge proof: you can prove you know a password without ever revealing the password. That turns a deep question, 'how do I know you know?', into pure math. You pass along the certainty without passing along the secret itself.

• The Millennium Prize Problems Mathematics

  Computers have checked billions of cases and the Riemann Hypothesis holds every time, so mathematicians act sure it's true. But 'it worked a billion times' is guessing from evidence, the way science works, not airtight proof. Even math sneaks in a little faith.