Why almost every video comes with subtitles now

Open any short-video app and mute it: you'll still follow everything. The text is there, burned into the image, often word by word, often dead centre. This is no longer the discreet strip at the bottom of the screen you had to switch on in a menu; it has become a full part of the edit, planned at the same time as the framing.

An accessibility invention everyone adopted

Captioning exists first to make a video understandable for deaf and hard-of-hearing viewers, and to cross the language barrier. Those uses haven't gone anywhere: they remain the caption's first reason to exist. What changed is that everyone else took it up as well. We watch in class, on the bus, next to someone who's asleep, in a queue. Sound has become the exception rather than the rule - and a silent video you can't read is a video you scroll past.

Text grabs you before the voice even starts

There's an editing calculation too. The opening instant decides everything: in a scrolling feed, a video settles its fate before a single sentence has had time to be spoken. A line of text, on the other hand, is read instantly. It announces the subject, asks a question, promises a punchline. The caption no longer accompanies speech: it gets there first and works as the hook.

From comfort to style, and its excesses

Hence the drift: a word popping in on the beat, a colour switching on the key term, a font so recognisable it identifies a channel on its own. The caption has become a visual signature as much as a service. It has its excesses - text taking up half the screen and hiding what you're meant to be looking at, lines scrolling faster than anyone can read, a decorative effect where a plain sentence would do. The test stays simple: a good caption lets you follow with or without sound, and still leaves the image visible.