Siwei Shiyanshi: The Self-Taught Polymath Who Turns Cold Knowledge into a Weapon of Curiosity

Siwei Shiyanshi, which translates as "Thinking Laboratory," is a Chinese knowledge creator and one of the most distinctive voices in Bilibili's science and history section. His real name is Zhao Jiaqi, and he is based in Xi'an, Shaanxi Province. Before becoming a full-time content creator, he worked as an ordinary office employee, a fact that distinguishes him from the many Bilibili knowledge creators who hold advanced degrees from elite universities. His parents were both middle school teachers, and he describes himself as a student whose strengths lay in the sciences while his humanities performance was unremarkable. He has never claimed academic credentials he does not possess, and this honesty about his background has become part of his appeal. His channel's official description is disarmingly modest: "Science and historical knowledge popularization, with thinking added in. This is Thinking Laboratory, created entirely at home by one person. Starting a business is hard, so please be patient with updates". That single sentence captures the essence of his practice: a solo creator working from his apartment, producing videos that combine scientific rigor, historical analysis, and philosophical reflection, all delivered with a sense of intellectual urgency that has attracted a devoted following.

Zhao Jiaqi began uploading to Bilibili around 2018, when the platform's knowledge section was still in its formative stages. His early videos were not polished productions; they were the work of a hobbyist experimenting with the tools available to him. What distinguished them from the outset was their intellectual range. He did not confine himself to a single discipline. His videos moved fluidly between biology, history, technology, physics, sociology, and anthropology, unified not by subject matter but by a method of inquiry that he has described as "thinking while popularizing". He approached every topic with the same question: what does this tell us about how the world actually works, and what can we learn from it about our own condition? This commitment to synthesis, to finding connections across seemingly unrelated domains of knowledge, became his signature. By 2022, his channel had grown to over 500,000 followers, and he began to be recognized as one of the most promising voices in Bilibili's knowledge ecosystem. By January 2025, his follower count had reached 7.275 million, and he was named to Bilibili's Top 100 UP Creator list for both 2023 and 2024, with a third selection following in 2026 for the 2025 list.

The most important turning point in Siwei Shiyanshi's career was his decision to produce a comprehensive series on the history of the Chinese Communist Party. This was not a subject he approached casually. He spent years researching, citing sources, and building a narrative that treats the Party's early history not as a triumphalist fable but as a case study in organizational survival, strategic adaptation, and the economic and social forces that shaped the outcome of the Chinese revolution. The series, which he began releasing as paid membership content on Bilibili's charging platform, became a phenomenon. It is widely credited with transforming his financial sustainability; discussions among his viewers note that "it was the Party history series that made him this successful," and that his paid membership numbers are among the highest in Bilibili's knowledge category, with over 180,000 users paying monthly for access to his content. The series covers topics ranging from the founding of the Party and the establishment of its first armed forces to the decision to embark on the Long March and the strategic choices that determined the outcome of the civil war. What makes the series distinctive is its analytical method: he approaches these events through the lenses of economics, organizational theory, and internal political dynamics rather than relying on ideological framing alone. One widely recommended episode, "How Did 'Not Taking a Single Needle or Thread from the Masses' Lead to Encircling the Cities from the Countryside?", uses economic reasoning to explain how the Red Army's relationship with rural populations became a strategic asset.

Beyond the Party history series, Siwei Shiyanshi's video library encompasses an extraordinary range of subjects. His videos on the history of pandemics, including the Black Death and the 1918 influenza outbreak, combine epidemiological analysis with social history. His science videos explore topics as varied as the biology of bacteria, the physics of spectroscopy, and the mechanics of nuclear disasters. His video on the Chernobyl disaster has been widely cited for its clear explanation of the reactor design flaws and the human decisions that compounded them. A characteristic work, "Why Do People Let Themselves Be Deceived? Lessons from Pacific Islanders," examines the psychology of deception through an anthropological lens, using a specific historical case to illuminate a universal human vulnerability. Another recurring theme in his work is the relationship between technology and social change: he has produced videos on space colonization, artificial intelligence, and the history of medical innovation, always asking not only how these developments work but what they mean for human society. His content is characterized by a density of information that rewards attentive viewing. He does not pad his videos with filler; every minute is spent building an argument or introducing evidence. His delivery is fast-paced, a characteristic that some viewers find demanding but that his loyal audience regards as a sign of respect for their time and intelligence.

The social value of Siwei Shiyanshi's work lies in his demonstration that serious intellectual content can thrive on a platform better known for entertainment. He has built a career not by simplifying complex ideas into easily digestible fragments but by trusting his audience to follow sustained, rigorous analysis. His Party history series, in particular, has reached an audience far beyond the typical viewership for academic history, and it has been used by students, professionals, and general viewers as a resource for understanding a period that is often taught in simplified terms. His willingness to engage with difficult and politically sensitive subjects through a lens of evidence and reasoning rather than dogma has earned him respect across a wide spectrum of viewers. At the same time, his work has not been without criticism. Some observers have questioned the depth of his sourcing, and he has been the subject of online controversy regarding his political positioning and the rigor of his historical claims. He has addressed these criticisms in his own videos, acknowledging the limitations of his research while defending the value of his approach. His response to controversy, characterized by a willingness to engage rather than retreat, reflects the intellectual honesty that his most committed viewers value most.

In summary, Siwei Shiyanshi represents a model of the creator as a self-taught public intellectual. He has no formal training in the subjects he covers, yet he has built one of the most substantial and financially successful knowledge channels on Bilibili by applying a consistent method of inquiry to an extraordinary range of topics. His Party history series, in particular, has demonstrated that there is a large audience for analytical, source-based history presented without condescension or oversimplification. For Bilibili, he is evidence that the platform's knowledge section can support creators who take intellectual risks and expect their audiences to follow. For viewers, he offers a reminder that curiosity is not the exclusive province of the credentialed, and that the most valuable education is often the one you give yourself. His long-term significance lies not in any single video or series but in the example he sets: that a person with a genuine desire to understand the world, and the discipline to pursue that understanding rigorously, can build something that matters.