Sure. If you ask about something specific, I'd try to answer the best I can.
Hive is blockchain, it is a piece of code that runs as a backbone for everything we do here. There are many articles explaining it in a very simple way, those ones for instance:
https://hive.blog/hivebasics/@pitboy/what-is-hive-and-how-does-it-work-a-beginner-s-guide
https://peakd.com/hive-174578/@sidwrites/what-exactly-is-hive
Thank you so much