It USES technologies that most Ruby developers are familiar with, like ActiveRecord and standard ActiveRecord databases, and HTTP and S3 for communication and scaling.

它使用的是绝大多数Ruby开发者熟悉的技术，比如activerecord和标准的ActiveRecord数据库，以及用于通讯和伸缩的HTTP和S3等。

youdao

It is the balance of communication bandwidth and especially latency that limits this scaling.

FORBES: Moore's Law: Why It Matters Now More Than Ever

However, when such switches are inter-connected the underlying communication protocols can disturb local traffic and more importantly fall-short of scaling this performance to devices connected multiple hops away.

FORBES: Why the Cloud Needs a Network Decongestant