Quote Originally Posted by Sapphidia View Post
From what i understand, the Echo is purely used to see into the past, but you CAN interact with people in the memory, but it doesnt affect any outcomes. You didn't -actually- give Cid his goggles. You merely alerted Cid to your ability to see into his memories, and giving him the goggles was symbolic of showing that you were the one who managed to help him regain his memories in the church in camp drybone.

It's certainly not literally that your character travelled in time and gave him goggles. And Cid's "it was you.." was more him understanding that you have the power of the Echo and were just then able to see his past.
the problem with this theory is that he starts remembering how long has he WORE thoes googles.. and remembers getting them from you, there were no material googles until your shiny self gave it to them in the past, from all the time he is remembering there are no googles until you show up.