
1. Definition and concept Fine Tuning is the hypothesis that life as we know it can only exist if the constants of nature - such as the electron charge and the force of gravity - are at very precise values. Cosmic...
First: The concept of fine tuning in the universe and life
1. Definition and Concept
Fine-tuning is the hypothesis that life as we know it can only exist if nature's constants - such as the electron charge and the gravitational force - are at very precise values.
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Cosmic tuning refers to the fundamental physical constants that govern the universe, and any slight change in them makes life impossible.
Biological regulation: Living organisms are strictly controlled for life, and their ability to solve survival and reproduction problems depends crucially on this precise regulation.
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Second: breathing mechanisms as an example of fine-tuning
1. Respiratory Pressures
Pressure at sea level: 760 mmHg
is the force exerted by air gases on any surface.
It plays a crucial role in breathing mechanics.
Pressure inside the alveoli.
It changes during different stages of breathing.
During inhalation: drops below atmospheric pressure (about 756 mmHg)
During exhalation: Rises from atmospheric pressure
c. Intrapleural pressure
Intrapleural pressure (between the pleural membranes)
Always negative (less than atmospheric pressure)
About -4 mmHg at rest
This negative pressure prevents the lungs from collapsing.
2. Breathing Mechanics
Contraction of the diaphragm and external intercostal muscles
Increased volume of the thoracic cavity
Reduced pressure within the lungs (less than 760 mmHg)
Air flow from the region with the highest pressure (atmosphere) to the region with the lowest pressure (lungs)
Laxity of the diaphragm and intercostal muscles
Decreased volume of thoracic cavity
Elevated pressure within the lungs (above 760 mmHg)
Air coming out of the lungs into the air.
Third: The relationship between the cosmic system and the biological system
1. Precise bonding
Microregulation in biological systems is more extreme than in cosmology, where living systems require extreme precision in physical and chemical constants.
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Linked factors:
Composition of the atmosphere: oxygen (21%), nitrogen (78%), other gases (1%)
Atmospheric pressure: must be within a specified range
Temperature: Allow water to exist in the liquid state
Gravitational force: maintains the atmosphere
2. Quranic Evidence
God said:
“Whoever Allah wills to guide, He will explain his breast to Islam; and whoever He wills to mislead, He will make his breast tight as if he were ascending into heaven.”
Scientific explanation:
The verse connects the psychological state (guidance and delusion) with the physical state (tightness in the chest and difficulty breathing)
The analogy of "rising up in the sky" refers to the difficulty of breathing at high altitudes where atmospheric pressure and oxygen ratio are low.
This is a scientific fact that was not discovered until centuries after the revelation of the Quran.
Fourth: Scientific references
General scientific references:
References in Respiratory Physiology:
References in the relationship between science and religion:
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Source: Published on Dr. Mohamed Bourbab's Facebook page 2026-03-28
https://www.facebook.com/bourbab.m/posts/pfbid02q7pakfmLgeiN4vaUuSgKWAgmZ4osXdTrwHAjj7oghz82q1qtfFm2Y6NPyqhSVbrQl
