Great explanation of invisible/blank Unicode characters. It’s interesting how characters like zero-width space (U+200B) and Hangul filler (U+3164) can look completely empty but still be processed as real text in systems. These are widely used in social media, gaming usernames, and messaging apps to create “blank” text or special formatting effects.
For anyone experimenting with this, there are also online tools that let you easily copy invisible characters for use in bios, chats, or usernames.
You can try this tool here: caractere invisivel