This is a submission for the MLH x DEV Writing Challenge What I Built A bone can look fine on a grey 2-D CT slice and still be close to breaking. The people looking after an older woman in senior living rarely get a plain answer to "how strong is her bone?" until a fall gives them one. At Hack the Valley 11 , my team of four built Rainbone : a 3D stress test for bones, explained by AI agents. It takes a real research CT scan of a thighbone and solves it with finite-elemen...