Zhao Yi published "Space and Cosmology" in the form of a Chinese book, but within just over a week, it was rapidly translated into various languages.
The English version of "Space and Cosmology" immediately circulated on the internet in other countries, and after obtaining Zhao Yi's approval and signing a copyright agreement, publishing houses swiftly printed thousands, even tens of thousands of copies, yet demand still exceeded supply.
Some publishing insiders asserted, "This might become the best-selling theoretical physics book."
Theoretical physics is known for being obscure and difficult to understand, particularly the more advanced theories, which are full of various mathematical proofs; even professionals find them hard to comprehend, and related books seldom sell in large quantities.