Quantum Up Close: What is a browser engine?

The Mozilla wiki has a better summary: "Quantum is not a new web browser. Quantum is Mozilla's project to build the next-generation web engine for Firefox users, building on the Gecko engine as a solid foundation. Quantum will leverage the fearless concurrency of Rust and high-performance components of Servo to bring more parallelization and GPU offloading to Firefox."

It's a gradual inclusion of Servo's highly-parallel implementations into Firefox while maintaining compatibility. It's a very ambitious project, but is why Mozilla funds Rust development-- migrating from C++ to another language is a huge undertaking.

If you get lured here, because you want to have some quantum (mechanics) in your browser, go here: http://quantumgame.io/ ;)