Explore Yuval Noah Harari’s thesis that organisms are algorithms. Learn how life sciences and natural selection redefine human emotions as biochemical processes.

Organisms are algorithms, and feelings are not some metaphysical quality given to us to write poetry, but rather biochemical processes shaped by millions of years of natural selection to help us make survival decisions.
A clear, deep overview of the critiques of Yuval Noah Harari's 'Homo Deus' (and his thesis that organisms are algorithms), specifically focusing on an analysis of why these critiques are often considered weak and how Harari's arguments remain robust. Use the attached YouTube source 'Yuval Noah Harari. Organisms Are Algorithms. Body Is Calculator.' as a foundational reference.


Yuval Noah Harari proposes that the human body functions essentially as a high-speed calculator. In this view, organisms are not driven by mystical forces but are literal biochemical algorithms shaped by millions of years of evolution. This perspective suggests that life can be understood through the lens of biology and life sciences, moving away from metaphysical explanations of the human experience toward a more data-driven understanding of how we function.
According to Harari, feelings like fear or courage are not gifts from a higher power or unexplainable forces. Instead, they are the results of complex biochemical processes and algorithms. These processes have been refined by natural selection to help organisms survive and navigate their environments. By recontextualizing emotions as calculations, Harari challenges the traditional idea that human feelings are separate from the mechanical or biological world.
Natural selection is the driving force that shaped these biochemical algorithms over millions of years. Harari argues that more than a century of research in evolutionary biology and life sciences supports the idea that our internal processes are optimized for survival. Rather than being metaphysical qualities meant for appreciating poetry, our biological functions are practical results of evolution, designed to process information and respond to the world around us efficiently.
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