You will run into Eridian writing in Borderlands 3 long before you are capable of reading it. It is a mystery that you need to answer, so you might go on the internet to find out what the deal is. If you do, a helpful guide will tell you that yes, you can interact with the writing when you find it. But you won’t have a clue what it says, and that is okay. Somethings, you are not meant to know, yet.
Borderlands 3 – How To Read Eridian Writing
Eridian writing is a collectible in the game, but it is time-gated. As you play through the story, close to the end, the secret of Eridian writing gets unveiled to you, and you will be able to read it. So, you could be looking at waiting for about 30 hours from now before you will have a clue what it says.
I would suggest that you keep a note of the places where you found the Eridian writing, then backtrack through the game once you can read it. It sounds like a chore, but fast travel makes life pretty easy.
Sorry if this isn’t the answer you wanted. But it’s the one you got! Just play through the story, and eventually, the secrets of the Eridian writing will come to light.