A very conservative estimation! And it's not only documentation of software but also the requirements and other parts of the whole lifecycle. It's incredible how many companies hold meetings after meetings to keep up the oral tradition only to run in circles. Instead of POs who churn out dozens of irrelevant tickets, we need people who can tell and write stories - real stories not "user stories". They offer insight, motivation, engagement and the right understanding to break down the work into reasonable and deliverable bits.