What is joy stream?

Excuse me, could you please clarify what exactly "Joy Stream" refers to in the context of cryptocurrency and finance? Is it a new platform, a type of digital asset, or perhaps a unique feature within an existing system? I'm quite intrigued by the term and would like to gain a better understanding of its purpose, functionality, and potential impact on the industry. Could you elaborate on the key features and benefits of Joy Stream, as well as any potential risks or challenges associated with it?