Part: Part Nine - Inflection Points: M, Q & the Zones

The Dead zone

Pre-flop
Blinds 400 / 800 (100 ante)Pot 2,100 (2.6 BB)Your M = 0.7 • Dead zoneHJQ5 1,470 (1.8 BB)YOUfirst to actSB 16,000 (20 BB)posts 400 (0.5 BB)BB 16,000 (20 BB)posts 800 (1 BB)D

Dead zone (M 0.7) - you're nearly out of chips. It folds to you with Q♦5♦.

Dead zone, folded to you with Q♦5♦. Best?

WhyShove. In the Dead zone you have no fold equity left, so you're jamming purely for the chance to improve your stack - get it in with any reasonable hand before the blinds finish you. Folding to wait for aces just blinds you out.
What happensYou shove and hope to spike.  No fold equity left - just take equity.
In the Dead zone (M under 1) you can't fold anyone out, so the all-in is purely about catching equity - shove any playable hand rather than blind away to nothing.

Dead zone (M under 1): no fold equity remains - shove any reasonable hand and hope to improve.