I was heavily involved in the engineering for the compute takeoffs report, so I can confirm the basic model and argument was in place since at least December 2021, in a spreadsheet model Tom put together.
Tom then spent a year implementing new features, collecting and addressing feedback and doing robustness checks before publication.
And the basically final report was ready well before ChatGPT was released.
I was heavily involved in the engineering for the compute takeoffs report, so I can confirm the basic model and argument was in place since at least December 2021, in a spreadsheet model Tom put together.
Tom then spent a year implementing new features, collecting and addressing feedback and doing robustness checks before publication.
And the basically final report was ready well before ChatGPT was released.