Ecology and ethology. The food chain is a structure for transferring energy between trophic levels. The crocodile, an apex predator, plays a regulatory role in its environment: its hunting behavior is largely instinctive, which raises the question of at what level we can speak of "ego".

Neuroscience. The "self" is studied as a model that the brain constructs of the organism and its needs (Metzinger, Damasio). This regulatory function corresponds to what the text calls "taking one's own needs into account."

Amplification. Positive feedback systems amplify an initial signal. The idea of an amplifying ego is consistent with this model: cognitive biases, fear, and group identity amplify each other.

Extremism. The Uncertainty Theory (Hogg) suggests that uncertainty about oneself leads to rigid groups and beliefs. This supports the idea that an ununderstood ego fuels extremism.

Limitations. Science does not confirm karma; only feedback loops (action, consequence) approach it by analogy.

Hinduism

In the Sankhya, ahamkara individualizes and differentiates: a principle of amplification, not a fault. The Taittiriya Upanishad says, “Food is Brahman” (annam brahma): the food chain becomes a sacred circulation. The Gita (3, 27): deceived by the ego, one believes oneself to be the agent. Karma links the act to its consequence.

Buddhism

Karma is the intention that leaves a trace. The Buddha places ignorance and craving at the root of the cycle; the ego is merely a changing assemblage.

Jainism

Karma is a subtle matter that clings to the soul (jiva). Non-violence (ahimsa) towards all living beings lightens this burden.

Judaism

Hillel: “If I am not for myself, who will be for me? But if I am only for myself, what am I?” (Ethics of the Fathers 1:14). Taking care of oneself without forgetting others.

Christianity

“Love your neighbor as yourself” (Mark 12:31): self-love is the measure of love for others. “What a man sows, that he also reaps” (Galatians 6:7).

Islam and Sufism

The nafs, which commands evil (Quran 12:53), becomes extreme if it is not understood. The Quran reminds us: “Whoever does an atom’s weight of good will see it” (99:7).

Taoism

Good and evil are born together: “When everyone knows what good is, evil appears” (Tao Te Ching, 2).

The ego, amplifier of life

The ego is neither an enemy nor a master: it is an amplifier. Placed in a world of matter, hunger, and form, it demands constant attention. It multiplies what is entrusted to it: need as well as fear, tenderness as well as desire.

Its function is simple and ancient: to feed, to survive. The crocodile knows nothing of this, and yet its ego drives it, too, towards its prey. The food chain is one manifestation of this impulse: everyone eats, everyone is eaten, and life circulates.

The danger lies not in the ego, but in ignorance of the ego. What we don't understand grows silently, until it becomes extreme. The amplifier then focuses on good and evil, on settling scores, on karma, and the world is divided.

Understanding the ego means learning to listen to it without obeying it. Honoring its needs, without forgetting the face of the other, the earth that sustains us, and that spiritual dimension which, discreetly, contains them all.

Perhaps the ego is like a lamp: it lights up the room, but it shouldn't mistake itself for the sun.