As a child growing up in the 1980s, I was full of unusual questions. Back then, there was no internet, no Google, and certainly no AI to satisfy a curious mind. Whenever I asked questions that seemed unconventional, I was often told not to ask "stupid questions." Eventually, I stopped asking and became the quiet student in the classroom.
Years later, with access to Google and, more recently, AI, I finally found answers to one question that had fascinated me since childhood:
Does having a larger brain mean being more intelligent?
The question became even more intriguing when I compared humans with animals such as elephants and lions. They have much larger skulls and brains than humans, so does that mean they are more intelligent?
The answer surprised me even more after I learned about Albert Einstein's brain.
When Einstein died in 1955, his brain weighed approximately 1,230 grams, around 10–15% lighter than the average adult male brain, which weighs about 1,400 grams. Clearly, brain size alone could not explain his extraordinary intelligence.
The real difference lay in his brain's internal architecture.
Neuroscientists discovered several remarkable features:
- Wider parietal lobes – the regions associated with mathematical ability, visualisation, and spatial reasoning were about 15% wider than average.
- An unusual Sylvian fissure – a missing groove in part of his brain may have allowed neurons to be packed more densely, enabling faster communication.
- An exceptionally thick corpus callosum – the bridge connecting the brain's two hemispheres was unusually robust, allowing outstanding communication between the analytical and creative sides of the brain.
These anatomical characteristics are considered extremely rare, leading to the famous observation that Einstein had his grey matter "where it really counted."
I find this remarkably similar to the semiconductor industry. Many companies can manufacture silicon chips, but only a handful lead the world because of their superior internal architecture—their intellectual property (IP) and design—not simply the size of the chip. The same principle appears to apply to the human brain.
This also answers my childhood question about animals.
Although elephants possess brains that are physically much larger than ours—and even contain more grey matter—the key measure is the brain-to-body mass ratio:
- Humans: approximately 1:50
- Elephants: approximately 1:560
- Lions: approximately 1:550
A much larger proportion of an elephant's brain is devoted to controlling and maintaining its enormous body. Humans, on the other hand, have a far greater surplus of neural resources available for abstract reasoning, language, creativity, imagination, and complex problem-solving.
Final Thought
The lesson is both scientific and philosophical: intelligence is not determined by size, but by structure. Whether it is a human brain or a silicon chip, true capability lies not in how big it is, but in how efficiently it is designed and connected.
Perhaps that's why Einstein's brain wasn't extraordinary because it was larger—it was extraordinary because its grey matter was where it really counted.
Comments
Post a Comment