A new article was published yesterday by the Blog section of the Communications of the ACM (the most reputable magazine in computer science): https://cacm.acm.org/blogs/blog-cacm/236106-blockchain-was-the-first-but-will-not-be-the-last/fulltext

"One of the most visible technical innovations of the last ten years, aside from the promise to get tourists on Mars, is Blockchain. However, due to a large amount of marketing noise and financial speculation, many of us missed the technical trend this technology has successfully started. The trend can be labeled Zero-Trust Decentralization (ZTD), and it is truly unique and new. What is its future, and should we expect other products aside from Blockchain?"

The main point is that Blockchain is not the only solution, there will be others. Zold is one of them.