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Grand tree of ethics, meta-ethics and axiology

Created by Daniel A. Friedrich

Grand tree of ethics, meta-ethics and axiology

Well-being is the total sum of pleasures minus pains over the whole life.

All pleasures differ only in amount/intensity/duration; more net pleasure is better.

Quantitative Hedonism

Sum-Total Hedonism

Same

Total

Well-being is the average level of pleasure over a life rather than the total.

Well-being equals your overall satisfaction with your life as a whole.

Some pleasures are higher in kind (e.g., intellectual) and can outweigh many lower pleasures.

Qualitative Hedonism

Higher/lower

Are all pleasures of the same kind, or are some 'higher' than others?

How should we aggregate hedonic moments across a life?

Average

Average Hedonism

Hedonism

Global/Life-Satisfaction Theory

Narrativism

Global

Well-being consists in the satisfaction of the agent's (ideally informed) desires/preferences.

Well-being consists in pleasure and the absence of pain.

Do we count only global attitudes to one's life as a whole, or any desire that is satisfied?

Desire Theories

The life has a good narrative arc

Pleasure

Success/Preference-Satisfaction

Any

Actual-Desire Theory

Actual

Desires

Objectivism: Physics / logic

Emotivism (Ayer)

Moral utterances express approval/disapproval rather than report facts.

Are the relevant desires the agent's actual desires, or idealized/informed ones?

What fundamentally makes a person's life go well (what is intrinsically good for a person)?

Intersubjectivism: Communities

image

Well-being is the extent to which your aims or preferences are realized.

What is good for you is getting what you actually want.

Ideal-Desire Theory

Idealized

Who determines what is ethical?

Emotion

Objective goods

Subjectivism: Individuals

Expressivism / Quasi-realism

What is good for you is getting what you would want under full information and ideal conditions.

Absolutism: Plus, some actions are intrinsically right or wrong

Relativism: Depends on the context

Nihilism: Noone

If not beliefs, what do moral judgments express?

Attitudes (logic-ready)

Are objective goods grounded specifically in the development of human excellences (capacities/virtues)?

Objective-List Theories

Axiology asks what makes a life go well (the nature of well-being/value).

Non-cognitivism

Moral language expresses attitudes yet preserves logical features of truth-talk.

AXIOLOGY

Universalism: Some values everyone independent of culture and context

Yes

No

Certain goods (e.g., friendship, knowledge, autonomy, achievement) are good for a person independently of their attitudes.

What makes life valuable or worth living?

META-ETHICS

Towards whom is ethics normative?

No

Within Perfectionism, is virtue (moral & intellectual) the core constituent of well-being?

Perfectionism

Non-Perfectionist Objective Lists

What does it mean to make moral statements?

Meta-ethics asks what moral claims mean, whether they can be true, and how we know them.

Do moral judgments express beliefs?

Moral judgments state beliefs that can be true or false.

Yes

Anything else (Non-normative ethics)

Yes

Cognitivism

Eudaimonism (Aristotelian)

No

Well-being is the development and exercise of human excellences and capacities.

Plural objective goods (e.g., friendship, knowledge, achievement, autonomy) constitute well-being.

What question are you asking?

Can we know the truth of these beliefs?

What ought we do?

ETHICS (Normative)

Flourishing through the cultivation and exercise of virtues is central to a good life.

Other Perfectionist Views

Normative ethics asks what makes actions right or wrong and what we ought to do.

Yes

No

Epistemological moral skepticism

Yes

Are there any general principles that determine right and wrong?

Well-being centers on developing rational agency, mastery, creativity, or other human excellences.

Do those beliefs concern facts that are constitutively independent of human mind / opinion?

Moral generalism

No

There are no exceptionless principles; moral reasons vary by context.

Yes and no

Forms of Moral Skepticism

Moral Particularism

Yes

No

Moral truth depends on standards or attitudes of agents, assessors, or communities.

Utility = attainment of objective goods such as friendship, knowledge, and achievement.

Utility = pleasure minus pain; right acts maximize net hedonic value.

What fundamentally explains why an action is right or wrong?

Moral realism

Prefer distributions with less inequality even at some cost to totals.

Egalitarian Consequentialism

Right actions are those that produce the best overall outcomes.

Divine command

Outcomes

Objective-List Utilitarianism

Agreement

Care/Relations

Divine Command Theory

"Judgement-dependent cognitivism", some forms of ideal observer theory

Utility = satisfaction of (ideal/considered) preferences.

Hedonic Utilitarianism

Meta-ethical hedonism. (Joe Carlsmith's term for the theory of Sharon H. Rawlette)

An act is right iff it maximizes expected utility.

An act is right iff it follows the utility-maximizing rules.

Reduce inequality

Consequentialism

Duties/Rights

Are those beliefs sometimes true?

Use commonsense rules for guidance; optimize directly in special cases.

Character

Contractualism/Contractarianism

Care Ethics

Rightness is determined by God's commands.

Preference Utilitarianism

Objective goods

Within consequentialism, whose well-being and what goods count?

Deontology

No

Pleasure/pain

Act Utilitarianism

Rule Utilitarianism

Moral principles are justified by agreement (mutual advantage) or by being justifiable to each person.

Choose the act with the highest expected utility.

Preferences

Goodness created by an individual act

Two-Level Utilitarianism

(Multi-level utilitarianism)

Sum all welfare

Rightness depends on duties/rights that constrain outcomes.

Virtue Ethics

Morality centers on care, relationships, attentiveness, and responsibility.

Yes

Error Theory (Mackie)

Goodness created by the broader decision-making principle behind the act

Depends on your perspective

Weight the worse-off

Are there absolute side-constraints (actions never permitted regardless of consequences)?

Right action expresses virtuous character and fosters flourishing.

Are moral facts the same kind of facts as we study in physics?

Moral judgments aim at truth but are uniformly false; there are no moral facts.

Expectational Utilitarianism

For utilitarianism, what is the utility being aggregated (the value theory)?

What is the criterion of rightness vs. decision procedure?

Forms of Suffering-focused ethics

Prioritarianism

Consciousness: Moral claims supervene on claims about phenomenological qualities - i.e. moral claims are scientific claims about what creates positive states of consciousness

Yes

Is rightness grounded in universalizable maxims and treating persons as ends?

Yes

No

Expected-utility

No

Absolutist Deontology

Moral Naturalism

Moral facts are (or reduce to) natural facts discoverable in the empirical worldview.

Moral Non-naturalism

Build risk aversion/robustness into the choice standard.

Risk-Sensitive Utilitarianism

Risk-sensitive

How do we decide under uncertainty and real-world limits?

Utilitarianism (General)

How do we treat positive vs. negative welfare?

Priority to suffering

Negative Utilitarianism

Benefit people more the worse off they are (diminishing moral returns to the better-off).

Threshold Deontology

Yes

No

Why are moral facts observable?

How do we know about moral facts?

Through reason. Acting morally is rational.

Satisficing

Maximize aggregate well-being impartially across persons.

Give priority—possibly lexical—to minimizing suffering.

Some actions (e.g., killing the innocent) are never permitted.

Kantian Deontology

Rights-Based Deontology

Symmetric/neutral

Constraints hold unless consequences cross catastrophic thresholds.

Satisficing Utilitarianism

Supervenience:  No moral difference without some natural difference; moral facts supervene on natural facts.

Act only on universalizable maxims and treat persons as ends in themselves.

Ideal observer: Moral truths track the attitudes which would be endorsed by an ideally informed, impartial, rational observer.

Through intuition. They're obvious, simple properties known prima facie. We perceive them instinctively, similarly to emotions.

Intuitionism

Kantian Rationalism

What is the aggregation rule across persons and populations?

Classical (Neutral) Utilitarianism

Rights impose side-constraints that cannot be violated for gains.

Weigh benefits and harms symmetrically; maximize net utility.

Supervenience Theories

(naturalist) Ideal Observer Theories

It’s enough to achieve a good-enough outcome rather than the best.

Person-affecting

Moral sense theory

Moorean Non-naturalism

Total

Total Utilitarianism

Average

Sum wellbeing above a baseline threshold

Person-Affecting Utilitarianism

Maximize the total sum of well-being across all persons.

Critical-Level Utilitarianism

Average Utilitarianism

Only improvements for existing/identifiable people count morally.

Maximize average well-being per person.