Are Silo ans LSI the future of SEO?

[justmeron]

In researching seo there seem to be a lot of talk about new search engine indexing.
In case you don't know what these terms are, then I'll explain. Silo or siloing is a term used for building highly structured, theme based sites that search engines will love.
LSI or "Latent Semantic Indexing" is a way of using synonyms in your content that mean the same thing as your main keyword. This builds strength in your theme without making your keyword density too high.
I use RssEvolution and am wondering if it will have any future updates re these new trends?

[Omar]

well.. what makes you think is not having it already?

Silo or siloing is a term used for building highly structured, theme based sites

How is that different then RSSE sites internal link structure?