Today added to the site is a new canonics article on identical things.
Suppose you greet a man across the street as your friend Publius, and he turns out to be Quintus, his identical twin. Did your senses lie to you? And if they lied once, why trust them again?
The Stoics staked their theory of knowledge on the claim that no two things in nature are exactly alike. The Academic skeptics attacked that claim with twins, eggs and identical statues. Epicurean physics holds that truly identical things exist in countless numbers across the infinite universe, and the article shows why Epicurus's theory of knowledge was never in danger because of it.
The article can be read at the link below or by opening the "Canonics Analysis" menu in the left navigation sidebar.