I saw the film "Lucy" in 2015. The film says that humans can use 100% percent of the capacity of their brains.

According to my personal ideas, the capacity of the brain will changed based on the basic knowledge of a person. We all know Albert Einstein was a great knowledgeable human in the world. This level of knowledge can change by the time, for example he was arguably the best scientist or philosopher of his time; he used his brain as much as possible for innovation.

At the present, there are many more scientists in the world, but the world is filled with knowledge, new technology etc. Man's basic knowledge could be higher than a scientist in the past, because this knowledge is openly available everywhere. But the problem is that they don't use their brain to the same level as Einstein or any other scientist that has lived in the past. That means that they don't use the highest capacity of the brain.

So according to my idea, the capacity of the brain will vary depending on external environmental factors.

According to comments and suggestions in this article I read, I was unable to identify the truth: whether people can enhance their brain capacity like "Lucy". And I need to know whether humans have a fixed brain capacity or not.

Most religions say that their saints had used 100% of their brain capacity. So what about other humans?


This may provide you with extra supplementary information regarding the notorious "10 Percent Myth". To respond to your statement regarding increasing brain capacity through am increase in knowledge:

Synaptic Consolidation is the process by which items are transferred from short-term to long-term memory. Within the first minutes or hours after acquisition, the engram (memory trace) is encoded within synapses, becoming resistant (though not immune) to interference from outside sources.

Knowledge has to do with "saving" the original memory traces followed when first learning the information. It does not necessarily have to do with active brain capacity. Thus, an increase in knowledge will not necessarily cause an increase in used brain capacity.

You see, the primary issue here is energy cost. Although the brain typically only constitutes 2 percent of the body's weight, it utilizes around 20 percent of the body's energy intake. As a species, we have been "designed" through the filtering of many "versions" our species to be most efficient. As we have not found a particular need to utilize such a large percentage of our brain at a time throughout the millennia, our brains have been simplified into a somewhat energy-efficient structure, utilizing a portion of the total capacity at a time. However, if Man had originally needed to use more of the brain capacity for a majority of his or her daily activities, it would be safe to expect that we would use a larger portion of our brains at any given instance. Assuming you are still in a state of heightened neuroplasticity, it is potentially possible to "increase the amount of brain capacity used at a time" by participating in activities requiring multiple parts of your brain.

But how many different activities can you think of that would require reasoning, planning, parts of speech, movement, emotions, problem solving, movement, orientation, recognition, perception of stimuli, visual processing, perception, recognition of auditory stimuli, memory, and speech?


First of all, I'm not a psychologist and second, I'm not an english speaker.

I would say that the brain is much more than intelligence and memory. Mozart was unique at music, but I hardly doubt he would equal an average engineer in his own field. On the other hand, our brain is used to do many different functions. It is easy to see that if we could use 100% of our mind at the same time, we would both be afraid and happy, get asleep and awake... even more, we would die because all our muscles would try to contract and relax at the same time. So in this sense, I would clearly say: no, we can't use 100% of our brain. It is also important to state that different persons have different mental capacities. I would say Einsein used the same % of his brain that what you or me do, but his mind was greater than ours.

If we can enhance our mental capacities using technology in the near future, any answer would be especulative but I would say definitely yes.

Sorry by probably have used such unprofessional terms.

  • $\begingroup$ Well. before go into the facts i would like to ask, do you think, will human can increase the usage of capacity of brain, as a result of evolution of humans is being already happening since past.? $\endgroup$ – Tharindu Kandegedara Dec 31 '15 at 4:49
  • $\begingroup$ If we could use 100% of mind.cannot we control those unexpected behaviors such as you mentioned, "if we could use 100% of our mind at the same time, we would both be afraid and happy, get asleep and awake... even more, we would die because all our muscles would try to contract and relax at the same time." $\endgroup$ – Tharindu Kandegedara Dec 31 '15 at 8:15
  • $\begingroup$ What I'm trying to explain is that using 100% of our brain is nonsense. Our brain has many functions and you cannot just "erase" some of them to increase capacity. And I don't understand your first comment. We can get smarter, but the % of our brain used is just pointless. $\endgroup$ – Krotanix Dec 31 '15 at 8:22
  • $\begingroup$ I meant about the evolution theory of charles darwin. That is my idea. In the first comment I asked weather can it be true or false? some times it can be pointless. Then after I read some articles. I saw they say about 10% myth. According to my understanding, we use full capacity of brain overtime. and we cannot increase that. it is common for everyone, and also this 100% is necessary for the control of the body and the mind. But only thing we can do is improve the mind or intelligence. it will be differ from person to person. $\endgroup$ – Tharindu Kandegedara Dec 31 '15 at 10:01
  • $\begingroup$ To clarify what Krotanix said, the brain is not like a computer's CPU. Instead, the brain is like a bunch of different components that process different types of information. Since you are not doing every type of activity at every moment, there is no need or benefit for all brain regions to be activated simultaneously. Body muscles are a good analogy: How could you possibly use your digestive (intestinal) muscles to help you run faster? $\endgroup$ – Michael Jan 2 '16 at 4:00

Usage of brain capacity? That's an ridiculous expression. I see, you have already read about "ten percent of the brain" myth. As Krotanix wrote above, a brain uses all its functions in different time, coz you can't and shouldn't remember, feel everything in one moment. Vice versa, we can think about every detail independently, step by step, for understanding of full picture.

There were many experiments to explain difference between brain work of beginners and masters is some fields (some researches are described in the book of Robert Solso). It was found that they had almost the same brain activity. So, difference is in knowledge and experience, not in brain capacity or activity.

  • $\begingroup$ Can you put the link of Robert Solso's book or any related document of him? $\endgroup$ – Tharindu Kandegedara Jan 1 '16 at 4:47
  • $\begingroup$ @Tharindu I haven’t found his book for free, but there is specific explanation of the experiment. $\endgroup$ – AivanF. Jan 1 '16 at 9:28
  • $\begingroup$ So is that can be true, which saints improved by themselves through learning and experience and increased their mental capacity (mind and Intelligence) by any %. ? $\endgroup$ – Tharindu Kandegedara Jan 4 '16 at 3:41

"Lucy" was an interesting movie but is not based on how the brain functions.

Consider that an epileptic seizure is what greatly increased activity of the brain looks like. Or consider that tDCS (magnetically causing all neurons in an area of the brain to fire simultaneously) is used to render an area of brain inactive as the neurons recover after firing.

When you start talking about intelligence you are discussing the mind rather than the architecture of the brain. A good way to distinguish the two is to think about if you can point to it. Frontal lobe - yes! Joy, no.

The mechanics of the brain can be observed but how higher functions relate to this mechanics is not all that well known.

Summing up. "Lucy" was a fun movie but read evidence based research if you want to understand brains. "Neurons firing" is not the same as "thinking". Brain activity is not the same as wisdom or insight. The dualist and reductionist versions of how we exist really needs to be discussed more. The mind was dismissed by the behaviouralists without any evidence to support the dismissal.


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