There's a definition from Sam in the footnote: > [1] I use 'hard tech' to mean a startup is whether there is doubt that the technology can be built at all. Ed

There's a definition from Sam in the footnote: > [1] I use 'hard tech' to mean a startup is whether there is doubt that the technology can be built at all. Edit: I'm glad he defined it for this post. In general though, there's definitely ambiguity around the term.