Duolingo avoids a one-size-fits-all video strategy. They use TikTok for capitalizing on trends due to its virality mechanics. YouTube Shorts, which favors original content, is used for building out the mascot's lore. Instagram serves as an informational hub and a home for 'millennial-core' content.

Platforms like TikTok have shifted the paradigm where success is tied to each post's individual merit, not the creator's follower base. A single viral video can generate massive reach and sales, even if other posts have low engagement, a trend now adopted by LinkedIn, YouTube, and others.

The most effective way to scale on TikTok is not by constantly generating new ideas, but by identifying your own top-performing videos and remaking them. Re-recording your "greatest hits" multiple times a month consistently drives views and growth for your account.

Unlike platforms where content goes viral, Instagram’s original design prohibited resharing. This forced the focus onto individual creators, making people—not posts—the unit of virality. This key decision turned personal accounts into 'life resumes' and fueled the rise of influencers.

The platform's algorithm rewards instant gratification, pushing artists to create songs with standout, clippable sections like breakdowns or vocal hooks. Songwriters now often create these viral moments first and build the rest of the track around them, reversing traditional composition.

According to Chris Black of the "How Long Gone" podcast, TikTok has become the most powerful force in the music industry. A single viral song on the platform can resurrect a musician's career from a decade ago, leading to platinum records, sold-out tours, and financial windfalls that labels cannot reliably manufacture.

Sora's rapid decline after a viral launch reveals a critical lesson for media platforms. Because its videos were exportable, its best content was reposted to TikTok and Reels. There, the AI content competed against the best human content on a superior platform, making Sora's dedicated feed experience strictly inferior and unsustainable as a social destination.

The algorithmic shift on platforms like Instagram, YouTube, and Facebook towards short-form video has leveled the playing field. New creators can gain massive reach with a single viral video, an opportunity not seen in over a decade, akin to the early days of Facebook.

Adam Mosseri details TikTok's 'exploration-based ranking,' which systematically auditions new content by guaranteeing initial views (e.g., 100, then 1,000). This methodical system for surfacing hits from unknown creators has been adopted by Instagram and YouTube as the primary way to break new talent.