In 5 years, cloud LLMs may have largely replaced the open Internet as a source of information, with centralized control and ability to rewrite the past.

Please, please buy books and keep them in good condition, and please archive websites with important information (assuming it's legal in your jurisdiction). There are still plenty of excellent sites and blogs around from the 2000s and even earlier, but they won't be there forever. Ironically, coding agents have made archival much easier -- I've always found problems with using pre-written tools, but Claude or Qwen make it trivial to download, test, and archive sites on your local.