Apes in Drapes

You only know you've gone far enough in a discussion if you hit opinions on free will. So we might as well just start there.

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Further reading in case you want to start diving into some of the big names that focus or touched on free will and determinism, sorted in order of their birth:

Western Tradition
(Early) Zeno, Plato, Aristotle, Epicurus, Plutarch
(Middle) Descartes, Spinoza, Hume, Kant, Laplace
(Recent) Godel, Camus, Foucault, Chomsky, Umberto Eco

Arabic Tradition
al-Kindi, al-Maarri, al-Ghazali, Ibn Sina, Ibn Rushd

Indian Tradition
Sidhartha Gautama, Shankara, Rabindranath Tagore, Guru Nanak, Jiddu Krishnamurti

Chinese & Japanese Tradition
Lau Tzu, Confucius, Wang Fuzhi, Motoori Norinaga, Nishida Kitaro

Some resources:

1. Standford's Philosophy Portal

2. Internet Encyclopedia of Philosophy (I know, the name makes it sound like it's not legitimate. But it's a peer reviewed online resource by professors from various universities. It was started in 1995 when nobody was sure what the internet would be.)

3. Reddit thread with links to some great resources.