Spread. What happens to this message when it leaves your hands? No message dies where it lands.
It gets retold, and retelling is a lossy compression algorithm with an agenda. GrapeVine simulates secondhand persuasion: which lines survive retelling, how the message mutates as it moves, and what force it carries when it arrives, paraphrased, at the person who actually decides.
{
"probe": "grapevine",
"retention": {
"survives_retelling": "four million, no school closures",
"lost_in_transit": ["methodology caveat", "phase-two timeline"],
"mutation_risk": "'no closures' may harden into 'guaranteed no closures'"
},
"secondhand_force": 61
}mutation_risk field is where campaigns are saved. If your caveat cannot survive one retelling, it is not a caveat. It is a future correction, and GrapeVine just let you fix it while it was still cheap.ROI in one line, for all three probes: the most expensive audience research is the kind your opponents run on your live message, in public, for free. Windfall runs it first, in private, for you.
Next namespace: Groundwater. Back to Windfall.