What is RSS3 rubber?

Excuse me, I've come across the term "RSS3 rubber" in some recent discussions on cryptocurrency and blockchain technology, but I'm not entirely sure what it refers to. Could you please elaborate on what RSS3 rubber is? Is it a new type of digital asset? Or perhaps a specific technology or protocol within the crypto ecosystem? I'm particularly interested in understanding its potential applications, significance, and how it differs from other similar concepts in the field. Thank you for your time and clarification.