I watched the talk on the site, and I liked it. But I also immediately had the question: Where do my actual abstractions live? So, not the concrete instances of

I watched the talk on the site, and I liked it. But I also immediately had the question: Where do my actual abstractions live? So, not the concrete instances of an abstraction that runs somewhere, maybe as a component, maybe as code, maybe even as a whole container; but the abstraction itself.