What would you like to know? Simply put like you are 5, someone is using the ordinals protocols to setup and put the logs into inscriptions in bitcoin blocks. These will now be permanently a part of the bitcoin blockchain. However it is a bit more complex, as ordinals and inscriptions use taproot, the Nov 2021 bitcoin core upgrade. If someone runs a pre-taproot software, those blocks aren’t valid and seen by their node, however.
The key though is the blocks can’t be deleted, there forever as long as the full blockchain still exists somewhere by someone!
Hope that helps a bit?
Never be embarrassed to ask!