Every character you type has a byte cost — like a parcel has a shipping weight. Paste anything below and see, for yourself, how UCE-8 compares to UTF-8, the encoding almost everything already uses.
Fewer bytes means less to send over the wire. On a weak mobile signal, that's the difference between a page that loads and one that stalls.
A database, a backup, a message log — smaller text takes less disk, indefinitely, at whatever scale you're storing it.
Plain English text ties with UTF-8, byte for byte. UCE-8 only ever wins or matches — it never costs you more to send.