If You’re Not Writing Down Your Ideas, Ray Dalio Says: ‘That’s Sort of Stupid.’ Posted byJason Feifer December 1, 2021 Leave a comment on If You’re Not Writing Down Your Ideas, Ray Dalio Says: ‘That’s Sort of Stupid.’ The author of the bestselling ‘Principles: Life & Work’ thinks we miss out on far too many entrepreneurs insights because they never bother to write them down.