https://news.ycombinator.com/item?id=30105910 https://news.ycombinator.com/item?id=30105910 At its heart, it is very similar. Comment above does a good job at

https://news.ycombinator.com/item?id=30105910 https://news.ycombinator.com/item?id=30105910 At its heart, it is very similar. Comment above does a good job at describing the distinction. It's more than just re-usable HTML/CSS/JS, that's just how they're making it accessible to others. There are entities associated with the HTML/CSS/JS mapped alongside the component, which is the core benefit here. https://blockprotocol.org/spec https://blockprotocol.org/spec for more info on how they're mapping data as entities