Since its launch in 2019, the “Innovative Tech” series has featured a diverse range of the latest papers. In this special installment, we uniquely select and explain distinctive research papers from around the world that were published “a little while ago.” The article is written by Mr. Yamashita, who runs the research media outlet “Seamless” (“Seamless”) and makes it a daily routine to review numerous papers. The illustrations and manga are by One, an artist affiliated with the same media outlet. X: @shiropen2