What chain is bike chain?

Could you please elaborate on the statement "What chain is bike chain?" in the context of cryptocurrencies and finance? While it seems like a straightforward question about a physical bicycle component, I'm curious to understand how this relates to our field. Is there a metaphorical connection, or is this referring to some novel financial product or blockchain application that utilizes a term resembling a traditional bike chain? Clarifying this would help me provide a more informed and relevant response.