The book “Letters of the 20th Century” · June 2025 · research 00
Build a “digital twin” of the author: a custom ChatGPT project trained on his texts and materials, which would search, read and systematise sources for the chapters of the book “Letters of the 20th Century”.
I proposed the project itself while the book had stalled; set up a project assistant with instructions in the author’s voice; defined the working order: topic from the author → brief → research → checks → digest. On 18 June 2025 we announced the launch together in both channels.
ChatGPT (custom project), Perplexity
Below are the briefs the models received, the finished reports in PDF and documents, and the publications made along the way.
The project is named after the author’s initials: the digital twin was modelled on him. My part of the work got its name later, in one of his own chapters — “my partner and neurocaptain Julia Reprintseva”. Hence the title of the book of research.

Publications
Yuri Gordon and I — about this work in our own channels (in Russian). Each post links to the original.

