https://felipealvarenga.com/writing/ Essays on AI in accounting, agent-run engineering teams, and financial systems. en Wed, 28 Oct 2026 09:00:00 +0000 https://felipealvarenga.com/writing/ai-reads-a-bank-statement/ https://felipealvarenga.com/writing/ai-reads-a-bank-statement/ Wed, 28 Oct 2026 09:00:00 +0000 Eighteen months of a language model against real books: the invented account id, the false deletions, the PDF with no numbers, and why approval is not posting.