David de Souza

'Never Split the Difference' - 80/20 Summary

2021-09-30 · first published on 8020.co

18 Mental Models from the Book:

1. Anchoring

2. Denial

  1. How am I supposed to do that?
  2. Say something along the lines of: "Your offer is very generous, I'm sorry, that just doesn't work for me.
  3. "I'm sorry, I'm afraid I just can't do that (at that price)"
  4. No, said with a downward inflection.

3. Emotions

  1. Listen to themselves more carefully and clarify their own thoughts, allowing you to learn more about what they are thinking and their goals.
  2. They become less defensive.
  3. They are more willing to listen to other points of view.
  4. They become calmer and more logical. - When you've noticed an emotion, label it with one of the following:

  5. It sounds like

  6. It seems like
  7. It looks like
  8. Do not say: "I hear...." because hearing "I" can cause people to become defensive. It also indirectly shows that you are focusing on yourself and it causes you to take responsibility for the words that follow.

3.1 - Emotions: Calm

  1. Get them feeling safe and at ease...
  2. So that they talk...
  3. So you can find out what they need:
  4. Which could be....money, emotional support, or something else... - Softening Words to Calm

  5. Perhaps

  6. Maybe
  7. I think
  8. It seems
  9. Start with: How, What...and avoid Why - Softening phrases to calm:

  10. What about this is important to you?

  11. How can I help make this better for you?
  12. How would you like us to move forward with this?
  13. How can we solve this issue?
  14. What's your objective?
  15. How am I supposed to do that?

3.2 - Emotions: Fear

4. Ikea Effect

5. Inertia/Status Quo Bias

6. Language Instinct

  1. Late-night FM DJ voice: Inflecting your voice in a downward manner. Talk slowly, talk clearly. This style of talking shows that you have things under control.
  2. The positive playful voice: This is the voice you should be using most of the time. You should have a light and encouraging attitude. Relax and smile while talking in this voice as the person will pick up on it.
  3. The direct or assertive voice.

7. Liking

8. Leverage

9. Loss Aversion

10. Newton's 3rd Law: Action & Reaction

  1. What about this doesn't work for you?
  2. What would you need to make it work?
  3. It seems like there is something here that bothers you?
  4. The key to getting people to see things your way is not to confront them on their ideas ("You can't leave") but to acknowledge their ideas openly ("I understand why you're pissed off) and then guide them toward solving the problem (What do you hope to accomplish by leaving?)

11. Randomness

12. Reciprocity

13. Scarcity

  1. Increase the risk of an impasse and
  2. Cause you to increase your concessions as the deadline approaches.

14. Stress

15. System 1 vs System 2

16. Tendency to Want to Do Something

17. The Map is Not the Territory

18. Velocity

Let me know how these summaries can be improved. Contact me via Email (david@thisdomain.co) or on Twitter.