I'm surprised by the way you say that cryptocurrencies and mathematical records are useless and just waste energy and time.
Have you considered the possibility that these technologies have many applications in the modern world? Have you ever considered that they could be an important tool to protect users' digital rights and ensure the transparency and integrity of records? Before you say stupid things, study and do your research.
That's not technology but protocols for decentralized storage. Records can be stored centrally or decentrally. Point? What are you trying to say in the context of this topic? What exactly are you opposing in the OP?