RE: How would you explain Hive

This is not as simple a question as it seems. Because if it were, then there would be no need to ask this after so many years. The concepts mentioned here - decentralization, blockchain, web3, crypto, are unclear to most people. It is undoubtedly a social network that allows communication and sharing of various media content.
I think the best explanation, although from 2021, is this: https://jryze.me/hive/