Friday, 11 September 2026

Evo. Human heel strike walk

 Here are the main points in English:

Why do humans walk heel-first? Did this help humans spread across the world from Africa?

  • Humans typically walk by placing the heel on the ground first, followed by the rest of the foot and the toes.
  • Scientists believe this walking style is a distinctive feature that helped humans travel long distances and eventually spread from Africa across the globe.
  • However, heel-first walking also increases stress on the bones and joints, leading to evolutionary adaptations in the human body.

The Research

  • Researchers from Penn State University studied the walking patterns of humans and chimpanzees.
  • Their findings were published in the journal Proceedings of the National Academy of Sciences (PNAS).
  • Using modern motion-analysis and force-measurement technologies, they compared how humans and chimpanzees walk.

Humans vs. Chimpanzees

  • Chimpanzees, when walking on two legs, often place the side of the foot on the ground first.
  • Humans almost always land on the heel first.
  • Scientists suggest that this difference allows humans to walk much farther and more efficiently than chimpanzees.

Advantages of Heel-First Walking

  • Landing on the heel helps propel the body forward more efficiently.
  • This makes long-distance walking less energetically costly.
  • The ability to travel long distances may have been crucial for early humans searching for food, hunting, and migrating into new environments.

The Trade-Off

  • Heel-first walking increases impact forces on the legs and joints.
  • As an illustration, Professor Nathan Thompson explains that when people try to walk quietly across a creaky wooden floor, they tend to walk on their toes because toe-first contact reduces impact and noise.

Human Evolutionary Adaptations

Scientists believe humans evolved several adaptations to cope with the increased forces caused by heel-first walking:

  • Thicker heel bones
  • Larger knee joints
  • Other skeletal changes that improved endurance walking

Connection to Human Expansion

  • Early humans often had to walk long distances while hunting and gathering food.
  • Heel-first walking made long-distance travel more efficient.
  • This likely contributed to humans’ success as endurance walkers and helped them expand from Africa into diverse environments around the world.

Key Conclusion

The study suggests that heel-first walking was an important evolutionary adaptation that improved long-distance walking efficiency, helping humans become exceptional travelers and hunters. Although it increased stress on the skeleton, evolution compensated through stronger heels, larger knees, and other anatomical changes.


Toul

 What you’ve presented is a coherent theological and philosophical argument from the Vaishnava/Hindu tradition, particularly drawing on the Bhagavad Gita and Srimad Bhagavatam. It combines several distinct claims:

  1. Consciousness exists and is not yet fully explained by science.
  2. The continuity of personal identity through bodily change suggests an enduring self.
  3. That enduring self is the soul (atman), which survives bodily death.
  4. The soul is ultimately related to God (Krishna).
  5. Human life has a unique purpose: self-realization and God-realization.
  6. Spiritual practice, especially devotion to Krishna, leads to lasting happiness.

From within the Vaishnava tradition, these conclusions follow from scriptural authority and spiritual experience. The verse you quoted from the Bhagavad Gita (2.13, not 7.13) is indeed one of the classic arguments for the soul’s persistence through bodily change.

However, from a scientific and philosophical standpoint, several distinctions are worth making.

Consciousness and science

It is true that consciousness remains one of the deepest unsolved problems in science and philosophy. There is currently no universally accepted explanation of subjective experience (“what it feels like” to be conscious).

But the statement:

“Science cannot currently explain consciousness, therefore consciousness is the soul”

does not logically follow as a scientific conclusion. It is a metaphysical interpretation. Other interpretations exist, such as:

  • Consciousness emerges from brain activity.
  • Consciousness is a fundamental feature of nature (panpsychism).
  • Consciousness arises from information processing.
  • Consciousness reflects an immaterial soul.

At present, none of these views has been conclusively proven.

The continuity-of-self argument

The Gita’s argument is philosophically powerful:

  • The body changes continuously.
  • Yet there appears to be a persistent sense of “I.”
  • Therefore, the self may be something different from the changing body.

Many philosophers have taken this seriously.

However, critics point out that the sense of a continuous self may itself be constructed by memory, brain processes, and psychological continuity. Modern neuroscience has found that our sense of self can be altered by injury, disease, drugs, or stimulation of specific brain regions. Because of this, many scientists argue that personal identity depends heavily on the brain.

The debate remains open.

Is the soul “proven”?

Scientifically speaking, no. The soul has not been demonstrated in a way that meets scientific standards of evidence.

Philosophically or religiously, many people believe there are strong arguments for the soul, including:

  • The reality of subjective experience.
  • Personal identity over time.
  • Free will.
  • Near-death experiences.
  • Religious and mystical experiences.

Others find these arguments unconvincing and favor materialist explanations.

So it would be more accurate to say:

The existence of consciousness is well-established. The interpretation of consciousness as evidence for an eternal soul is a philosophical and religious conclusion rather than a scientific proof.

Spiritual experience

Your final point concerns devotion to Krishna as a path to happiness and realization.

This is a claim that many practitioners of Bhakti traditions report as true from their own experience. Spiritual practices such as prayer, chanting, meditation, worship, and devotional service have been associated with profound experiences of meaning, purpose, and well-being.

Whether those experiences are understood as direct contact with Krishna, psychological transformation, or something else depends largely on one’s philosophical and religious framework.

In summary, the argument you present is a respected theological and philosophical position within Vaishnavism. It is not currently established as scientific fact, but it addresses questions—consciousness, identity, meaning, and ultimate reality—that science alone has not definitively resolved.


Meditate, meditate, meditate and remain up in fontanel, in the abode of God.SWHHA

Silence Comes from Somewhere Else” Nikola Madzirov

B. Dukkha is the pain of not realising our true nature.

To realize God one need not go to the forest, the Himalayas or to holy pilgrimage places, one must rather dive within.SWHHA

L. Nobody grows old merely by living a number of years. We grow old by deserting our ideals." — Samuel Ullman

 

Nobody grows old merely by living a number of years. We grow old by deserting our ideals."

— Samuel Ullman