>new things don’t necessarily make older things obsolete. We have printers, for example, but it’s not like pens, pencils, and even chalk aren’t useful. When fi

>new things don’t necessarily make older things obsolete. We have printers, for example, but it’s not like pens, pencils, and even chalk aren’t useful. When first reading your example, I expected the printer to be the old technology. I think printers and pens have very different use cases. Using a pen establishes a creative loop with direct feedback, while printing is about making a copy of something that already exists. I think its fairer to compare a printer to digital storage/digital display of a document. The former exists due to ancient legal requirements when signing contracts. Similarly delivering a cached SSR HTML document fast and hydrating it with JS afterwards is the way to go. TTI is only a problem if you don't use regular links as fallbacks to make requests before hydration replaces them with JS-based event Handlers. Implement the modern web by using the established web as a fallback.