If by "tech" you mean mostly computers and software, then WebAssembly is exciting. We've had 5 or more years now of companies inventing languages that compile b

If by "tech" you mean mostly computers and software, then WebAssembly is exciting. We've had 5 or more years now of companies inventing languages that compile back to Javascript, even though Javascript is a terrible target for compilation. WebAssembly was designed to be a true compilation target, and will allow an endless number of languages to be used on the browser. WebAssembly helps create more space between the kind of languages that developers want to use, and any particular GUI output, such as HTML. In a different thread, I just wrote about what is wrong with HTML: https://news.ycombinator.com/item?id=14926845 https://news.ycombinator.com/item?id=14926845 If by "tech" you don't mean computers/software, then CRSPR is clearly going to be a huge thing going forward.