Sign Apr 2026

Humans 40,000 y ago developed a system of conventional signs

: It challenges the idea that sign languages are "just" gestures and explores how the visual nature of signing allows for more direct meaning than spoken sounds. The full text is available via Frontiers in Psychology . Humans 40,000 y ago developed a system of

: It explains why a word or image isn't just a thing—it's a tool for meaning that relies entirely on the observer's mind. You can explore a breakdown of his theories at the Stanford Encyclopedia of Philosophy . 2. The Evolution of Human Communication (Archaeology) Humans 40,000 y ago developed a system of

3. Comparing Visual vs. Spoken Language (Psychology/Linguistics) Humans 40,000 y ago developed a system of