it's not rare at all for previous authors to just disappear. do you know what the turnover is at large companies?? reading the code is not the issue though, we

it's not rare at all for previous authors to just disappear. do you know what the turnover is at large companies?? reading the code is not the issue though, we also lose context. WHY was it done that way? was it a product decision, due to time constraints, or technical complexity? that should be documented but often isn't