Idea: Hover and learn A browser extension that randomly replac | Startups & Ventures

Idea: Hover and learn
A browser extension that randomly replaces some words on websites to be the words in the language you learn.

You can hover on the unfamiliar word and see a translation, pronunciation, songs containing this word, a few movie clips with it and other usage of the word in different contexts.
Example.

This helps by allowing users to browse the web and learn more effortlessly. Anyway they should do a mental effort to learn and you can determine how they'll do it. For example, add the hovered words to a vocabulary and show them to repeat and learn (spaced repetition).