Building a world class engineering organization — learning from cave paintings and horsey land art by Shane Becker Human built things survive for a Very Long Time™ by one of two ways: materials or maintenance. What we can learn from Stonehenge, Lascaux cave paintings, Brewarrina Aboriginal Fish Traps, the White Horse of Uffington, Iranian windmills, and Japanese Shinto shrines? If we knew for certain that our Rails apps would be in use in ten years (or a hundred!), what would future us wish that we would've done now to build a better future?