A 27-year-old Apple iBook can still connect to a modern Wi-Fi network and download updates from Apple servers without any modifications. The iBook's ability to connect to modern Wi-Fi and download updates is due to its support for older Wi-Fi standards and Apple's continued support for older devices. However, some commenters have pointed out that the original post is misleading, as the iBook in question is not actually 27 years old and may not be able to connect to modern Wi-Fi networks without issues. The discussion revolves around Apple's support for older devices and the concept of planned obsolescence.