We all come across a conversation at some point where we tune out after just two sentences. Geopolitics, art history, popularized quantum mechanics: the topic matters little, it’s the disconnect that stings. Expanding one’s general knowledge doesn’t require going back to school, but rather changing a few concrete daily habits. The real lever is consistency across varied subjects, not intensity on a single niche.
Algorithmic micro-niches and general knowledge: the trap of personalized feeds
When we open TikTok, Instagram Reels, or YouTube Shorts, the algorithm locks us into what we already like. We watch three videos on astrophysics, and the feed only suggests that for weeks. The Digital 2024 report from DataReportal and GWI confirms that TikTok has become a major information vector, but within very targeted micro-universes.
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The result: we become knowledgeable about a niche topic and ignorant about everything else. To counter this effect, we can force diversity. Practically, this involves a few simple actions.
- Subscribe to accounts outside of your usual interests (history, science, languages, economics) to deliberately disrupt recommendations
- Alternate formats: a geopolitics podcast on Monday, a science popularization channel on Wednesday, a history quiz on the weekend
- Limit passive scrolling to a defined time slot and dedicate the rest of the time to chosen, not suggested, content
You don’t build a broad general knowledge by letting an algorithm decide what you learn. It’s by actively choosing your subjects that you make progress.
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Platforms like Le Tour de la Question allow you to navigate between very different themes, from science to practical life, without getting stuck in a single bubble.
Conversational AI: a general knowledge tool to use methodically
For the past two years, conversational AI tools (ChatGPT, Gemini, Claude) have become part of our habits. A December 2023 Odoxa/Le Figaro survey shows a rapid increase in their use for information and understanding current events, especially among 18-34 year-olds.
In practice, you can ask a question about the context of an election, request an explanation of a physics concept, or ask for a summary of a long article. It’s quick and often clear. The problem arises when you take the answer at face value without verifying it.
What AI does well and what it misses
AI excels at providing a quick overview of a topic you know nothing about. It can explain the difference between Sunni and Shia, summarize the major events of the French Revolution, or popularize how a messenger RNA vaccine works.
However, factual details (dates, numbers, names) must always be cross-checked. Feedback varies on this point: some answers are reliable, while others contain inaccuracies. The useful reflex is to treat AI as a starting point, not as a verified encyclopedia.
Specifically, you save time by formulating precise questions rather than vague ones. “Explain the economic causes of the 1929 crisis” will yield better results than “Tell me about 1929”.
Short reading and podcasts: formats that endure
Most guides on general knowledge recommend reading books. The advice is sound but incomplete. For someone who doesn’t read regularly, tackling a four-hundred-page essay on world history is the best way to give up after thirty pages.
Short formats work better for establishing a habit. A deep article a day, a twenty-minute podcast episode during a commute, a quick quiz before bed: consistency in short formats beats occasional motivation in long formats.
Podcasts and videos covering varied topics
Popularization podcasts today cover almost all fields: history, science, languages, geopolitics, economics. The advantage of podcasts is that they can be consumed while doing other things (walking, commuting, cooking).
For videos, popularization channels on YouTube remain a solid channel. The key is not to stick to a single channel. We return to the problem of the algorithmic niche: variety is essential.
Quizzes and general knowledge games: test to retain
We remember better what we had to actively retrieve than what we read passively. This is the principle of active recall, documented in cognitive sciences. Quizzes and general knowledge games exploit exactly this mechanism.
Several apps offer thousands of questions divided by categories (history, science, geography, cinema, literature). The Coach Culturel app, for example, offers over 3,000 questions across a dozen categories, with additional explanations after each answer.
- Taking a daily quiz of five to ten questions forces you to mobilize your knowledge, not just consume content
- Errors stand out more than correct answers: we often remember the answer we got wrong better
- Playing with others (family, friends) adds a social dimension that enhances memorization
Regularly testing your knowledge anchors information much more than passive reading. Even five minutes a day is enough to create a cumulative effect over several months.
Conversations and debates: general knowledge is also built orally
Reading, listening, watching: these activities remain solitary. Part of general knowledge is built through exchange. When we discuss a topic with someone who has a different viewpoint or different knowledge, we reformulate, argue, and discover angles we wouldn’t have explored alone.
Participating in debates, even informal ones, or simply asking questions to those around you about their areas of expertise is an underestimated lever. Every conversation is an opportunity to learn something that no algorithm would have suggested.
General knowledge has no finish line. What truly changes the game is varying the channels, not outsourcing your curiosity to an algorithm, and testing what you think you know. The rest will follow.