Wei Dongyi's ¥39 Math Workbook Made a Million in Four Days, Then Disappeared

Wei Dongyi has spent years as one of China's strangest celebrities: a man awarded every mathematical honor you can collect young, who eats steamed buns from a plastic bag and drinks room-temperature water, and whose lecture videos circulate online not because people understand the problems on the board but because they love the gap between the shabby figure and the unearthly mind. Chinese social media calls him 韦神 — 'God Wei' — only half in jest.

So when a shop under his name listed two primary- and middle-school math workbooks at 39.8 yuan, the market did not need a marketing budget. In four days the books passed one million yuan in sales — more than 26,000 copies at that price, by Baidu's arithmetic — before the link was pulled on the evening of August 22. A Zhihu thread asked the question the rest of the internet was already toying with: why would something selling this well simply disappear? No explanation accompanied the removal.

The obvious reading is supply. A 39.8-yuan workbook with a mathematician's name on it is an impulse buy for parents who want their child to catch a little of whatever Wei Dongyi has. But the deeper tension is about the person, not the product. Wei's public value is built on the absence of commerce: the untucked shirt, the plain cooking, the refusal to perform. Letting that image touch a sales link is like watching a monk run a concessions stand. The books could be excellent; the discomfort would remain.

It is also possible the takedown is the least interesting kind of story — a platform review, a rights issue, a supply limit nobody expected. The silence around it, though, is true to form. Wei Dongyi does not give the internet what it asks for, which is precisely why the internet keeps asking. For a day in August he was the centerpiece of a million-yuan flash market; by the following night the link was gone, and the only certain thing about the episode is that the culture wanted the books more than it trusted the commotion around them.

The question now hanging over the vanished listing is a soft one. China has produced few figures who matter to teenage girls on Weibo, to parents shopping for study aids, and to professional mathematicians at the same time. Whether the workbooks return or not, the affair — only a handful of days long — was a reminder that in the attention economy, the most scarce and most saleable thing a genius can possess is the appearance of wanting nothing at all.