What it is
Driving acceptance by raising alarm rather than by showing the claim is true.
In the wild
Sign now or your competitors will crush you.
How to answer it
Ask how likely the feared outcome is and what evidence sets that probability.
Emotional pressure
Appeal to fear
Also called Scare tactics, argumentum in terrorem
In depth
Origin and naming
Known in Latin as 'argumentum ad metum' or 'in terrorem' — 'argument to fear'. Logicians catalogued it as the move that wins agreement by inflating dread of the alternative rather than by showing the proposal itself is sound.
More places it shows up
If we let the junior developers refactor that module, one bug could take the whole platform down — so the rewrite stays with the same two seniors forever.
Switch phone carriers and your number might get lost in the transfer; do you really want to gamble with that?
A campaign ad shows an empty playground and warns that the other candidate's budget will make every neighborhood unsafe.
Skip one gym session on this program and you'll lose all your progress — better lock in the annual plan today.
How to spot it
- Notice when the case for a plan is mostly a horror story about its rivals.
- Notice when urgency spikes exactly where the data should be.
- Notice when the feared outcome is vivid and detailed while its probability is left blurry.