Copying text from the real world into a note or a document used to require manual transcription or hit-and-miss OCR software. If you have an iPhone, you can easily copy text from a sign, book, or screenshot using Live Text.
Live Text is a bit of Apple branding for what amounts to a modern take on OCR (optical character recognition). The feature relies on machine learning to identify words in an image that are then converted to plain text. This allows you to copy the text and do whatever you want with it: paste it into a note, quote it in a Word document, or share it in a Facebook post.