1. Person A
1.1. Needs
1.1.1. Motivation
1.1.1.1. Goal A
1.1.1.1.1. Final goal
1.1.1.1.2. Intermediate goal
2. Planning
2.1. Estimation
2.1.1. Energy input
2.1.1.1. Simplicity
2.1.1.1.1. Principle of least effort
2.1.2. Risks
2.1.3. Chances
2.1.4. Priority
2.1.5. Prize
2.1.6. Reachability
2.2. Path to goal
2.2.1. Alone
2.2.1.1. Pro
2.2.1.1.1. 100% of the prize
2.2.1.2. Con
2.2.1.2.1. 100% of the risk
2.2.1.3. Moral character
2.2.1.3.1. Greed
2.2.1.3.2. Miser
2.2.1.3.3. Anxiety
2.2.1.3.4. Altruism
2.2.1.4. Skills
2.2.1.4.1. Tools
2.2.1.4.2. Knowledge
2.2.2. Group
2.2.2.1. Goal of group
2.2.2.1.1. Commonalities
2.2.2.1.2. Differences
2.2.2.2. Regulations
2.2.2.2.1. Agreement
2.2.2.2.2. Norm
2.2.2.3. Institutions
2.2.2.3.1. Hierarchy
2.2.2.4. Trust
2.2.2.5. Tolerance
2.2.2.5.1. Sharing
2.2.2.6. Coordination
2.2.2.6.1. Communication
2.2.2.7. Pro
2.2.2.7.1. Risk devided
2.2.2.7.2. Prize bigger
2.2.2.7.3. Less energy
2.2.2.8. Con
2.2.2.8.1. Sharing
2.2.2.8.2. Dependent
3. Science
3.1. Evolutionary biology
3.1.1. Co-operation (evolution)