The Sheaves A Poem by Edwin Arlington Robinson www.poetrynook.com Where long the shadows of the wind had rolled, Green wheat was yielding to the change assigned; And as by some vast magic undivined The world was turning slowly into gold. Like nothing that was ever bought or sold It waited there, the body and the mind; And with a mighty meaning of a kind That tells the more the more it is not told. So in a land where all days are not fair, Fair days went on till on another day A thousand golden sheaves were lying there, Shining and still, but not for long to stay— As if a thousand girls with golden hair Might rise from where they slept and go away. farmingseasonschangemelancholy
What's wrong with the rational model We Don’t Really Know the Goal When We Start We Usually Don’t Know the Decision Tree – We Discover It as We Go The Nodes Are Really Not Design Decisions, but Tentative Complete Designs The Goodness Function Cannot be Evaluated Incrementally The Desiderata and Their Weightings Keep Changing The Constraints Keep Changing Frederick P. Brooks, Jr., What's Wrong With This Model? Changing constraintsDeciding what to designThe situation talks back