A late design change is a propagation problem: packages, trades, critical path, cost. Nexus computes what it really touches - with the receipt.
One drawing moves and a dozen packages move with it - some silently.
Critical-path movement with float consumed is the number that matters.
Acceleration versus delay versus redesign - options priced, not debated.
A late structural change lands on a live program. What does it really cost?
RECEIPT · SIGNED, REBIRTH NEXUS · every figure above names the engine that computed it - open any step.
Illustrative scenario - not live client data.
Tell us the decision you face, and a deterministic, tested, documented engine appears inside the same governed doorway - in days, not quarters.
One use case, your data, 30 days - and a receipt on everything. If seeing the full picture doesn't change the decision, you walk away.