How did Optimus Prime know about his glasses? eBay. OK, fair enough... But while watching TF1 last week, something occurred to me that I never thought about before. How is Optimus able to recount so much detail in Cpt. Witwicky's finding of Megatron? How does he know all about Witwicky accidentally enabling Megatron's navigation system etc? I've seen the movie quite a few times, but it just seemed very odd to me for once. Optimus tells the tale as if he were there, but it seems to me he couldn't know all those little details.