Diffusion
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Diffusion is the spread of cultural elements from one culture into another through contact, trade, migration, conquest, or media.
Show
A dish, a loanword, and a musical form each travel the same trade route, and each arrives altered by the journey.
Watch for
What diffuses is reinterpreted on arrival; it rarely lands unchanged.