ChatGPT is full of sensitive private information and spits out verbatim text from CNN, Goodreads, WordPress blogs, fandom wikis, Terms of Service agreements, Stack Overflow source code, Wikipedia pages, news blogs, random internet comments, and much more.
ChatGPT4 now indeed can connect to internet and read the sites and summarize the data. But this has nothing to do with storing it he whole books in their memory. It read the internet sites exactly the same way as you and me do. I do not understand what is your argument here. Internet is external to ChatGPT.