Expansion Diffusion

Expansion diffusion is a process by which cultural traits, ideas, or innovations spread from one place to others, while remaining strong in their original location. Imagine a popular trend, like a new style of music or fashion, that begins in a big city. As people hear about it, they adopt it in their own areas. The trend grows in popularity and spreads outwards, often through social connections, media, or travel. While it reaches new places, the original city continues to embrace the trend, leading to a wider influence without losing the cultural roots from where it started.