The language you speak to people is the market; the languages your product supports are features
The claim. A product that handles many languages is not in many markets. The market count equals the number of languages you address people in — your pages, your videos, your community presence. Everything else is surface area on a feature list.
Why the two get confused. Both appear as a list of languages and both feel like reach. But they sit on opposite sides of the cost line:
- A supported language is a build item, paid once. It ships with the release and serves every buyer who already found you.
- An addressed language is a standing operation. It needs its own content line, its own platforms, its own community credibility, its own support inbox, and its own read of what that audience finds funny, embarrassing or worth forwarding. It is paid every week, forever.
Adding the eleventh reading language grows a landing page. Adding the second audience language doubles a company.
The instance that taught it (Lucerna, 2026-08): eleven reading languages, ten UI locales, definitions produced into the reader's own language — and not one line of that reaches a person who has never heard of it, because the marketing addresses one audience.
The consequence that hurts. No marketing asset serves two audience languages at once. Subtitles do not fix this: the asset's mechanism usually runs on something the viewer must recognize instantly and privately in their own language. Read through a subtitle, the recognition arrives a half-second late and dead. For a product whose subject is language, the effect is total: the "the translation says X, but the original says Y" move only fires when X is the viewer's own language. Translate the asset and there is no asset.
So the decision is not "should I be multilingual." It is: which audiences do I address, how few can I get away with, and what does each one cost me every week. Choose deliberately and choose few.
Kin: match-routes-by-duplication-cost — how to serve a second audience without paying twice · format-lag-arbitrage — the same border crossed in the other direction.