# Northr -- Field Notes > Practical essays on decisions, alignment, and constraints. ## Index - https://northr.ai/field-notes ## Foundational Essays - https://northr.ai/field-notes/why-constraints-beat-goals - https://northr.ai/field-notes/activity-is-not-progress - https://northr.ai/field-notes/alignment-is-a-signal - https://northr.ai/field-notes/why-teams-drift-even-with-clear-goals - https://northr.ai/field-notes/decisions-decay-faster-than-plans - https://northr.ai/field-notes/the-difference-between-coordination-and-alignment - https://northr.ai/field-notes/how-constraints-reduce-conflict - https://northr.ai/field-notes/when-autonomy-becomes-fragmentation - https://northr.ai/field-notes/decision-making-under-uncertainty - https://northr.ai/field-notes/why-busy-teams-miss-important-signals ## Core Concepts - https://northr.ai/concepts/constraint-based-planning - https://northr.ai/concepts/alignment-signals - https://northr.ai/concepts/return-first-work - https://northr.ai/concepts/decision-fatigue