Putting REST to rest with gRPC

Nowadays when REST is popping out everywhere and every single API is a REST service, a single mention to RPC seems like a time travel into the past. In the shadows of REST's glory, Google has quietly made and open sourced it's RPC framework (intuitively) called gRPC under the slogan "boilerplate to high-performance scalable APIs". Considering popular names already using it, looks like there's much more to a story than it seems. What's it all about? What's wrong with JSON and REST? And why does HTTP matters? Join me in this talk and let's find out! P.S. We'll mention microservices.