Signals & Why++

Updated October 03, 2025

What is a signal?

A signal is any observable piece of evidence that informs the reliability, traction, or risk profile of a project. One signal is rarely conclusive; the strength comes from combining multiple independent signals.

Signal categories

The Why++

Why++ is the short, defensible rationale that stitches your signals into a coherent conclusion. It should be clear enough for a stakeholder to act on, and specific enough to audit later.

Good Why++ statements are: (1) evidence‑anchored, (2) falsifiable, and (3) scoped to the decision at hand.

How to write a solid Why++

  1. Start with the question. e.g., “Should we integrate X as a data source this quarter?”
  2. List the strongest signals. Pick 3–7 independent signals with sources.
  3. State the conclusion and risk. “Proceed, gated by security review,” or “Defer; traction unclear.”
  4. Call out unknowns. Surface the top 1–3 gaps that could change the decision.

Examples

Proceed (guarded)

Defer

Checklist