He makes a very good point though. Namely, written language isn't something that's been hardwired into our brains. If we find a more complex form of communication, written language will go the way of the heiroglyphics. What can replace it? Communications implants with access to massive databases like Wikipediax1000. At first, you'll still be reading pages - just in your head. Eventually the tech will evolve to the point where you're no longer reading, but the answer just appears in your head as if it were a thought. There are people who are already working on the neural-electro interfaces - sure you've seen the story of the prosthetic arm controlled as if it were real.
However, I doubt this sort of tech will be available or at least widespread in 2025.