https://www.youtube.com/watch?v=3yLXNzDUH58&list=PL8dPuuaLjXtP5mp25nStsuDzk2blncJDW&index=2&ab_channel=CrashCourse
https://www.youtube.com/watch?v=Nxyo83cQjhI&list=PL8dPuuaLjXtP5mp25nStsuDzk2blncJDW&index=15&ab_channel=CrashCourse
There's about 7000 existing languages now in 2020
examples of languages that doesn't belong to any family: Basque, Ainu
Language is...
used to comminucate.
sign : a discrete unit of meaning
convection : a set of agreed upon norm
unique to human beings.
hierarchically organized.
uses arbitrary signs.
genetic (the inateness hypothesis).
produced and perceived through different modalities (聽覺、視覺、觸覺等等).
Human are genetically endowed for them (喉嚨空間變大,自由度變高)
common features shared by all human languages (not by chance!)
User
Specialized : specialized for communication
Interchangeable : send/receive message
Feedback-sensitive : user could monitor/adjust if needed
Interactive : learn by interacting
Message
Meaningful : language specifies meaningProductive : can create new meassge
Displacement : the content isn't limited by time/space
Code
Discrete : consists of smaller parts
Arbitrary : no built-in(intrinsic) connection between signal & meaning
Hierarchical : small units are combined to form larger units (sounds⇒words)
Signal
Modality-specific : uses airway (hands-free)
One-to-many broadcast
Directinal reception : the (single) source could be identified
Rapid fading : disappear soon after produced
"A language is a dialect with an army and navy."