[_y5hn]

Exactly this!

The complexity and misunderstandings also creep into system design itself. Seems many are eternally astounded that transactional data is "duplicate data" stored separately from the "same data", etc. Many of these complexities are non-obvious and unintuitive, until you are forced to think it through step by step yourself. Agile is simply the concession that the complexity cannot always be handled up-front, but that solutions must be developed to be adaptable to new observations and realizations.