The Journey of Intelligence: From Flatworms to Homo Sapiens
Intelligence, the ability to learn, reason, and solve problems, is the secret weapon that allowed humans to dominate Earth. But this power didn't emerge overnight.
- 500 million years ago: Flatworms developed the first primitive brains, tiny neuron clusters for basic body functions.
- Over millions of years: Species evolved specialized intelligences (navigation, communication) suited to their environments.
- 2 million years ago: Homo erectus emerged with a broader, more general intelligence, able to understand and transform the world.
- ~250,000 years ago: Modern humans appeared with even larger brains, enabling large-group cooperation, complex communication, and exponential knowledge accumulation.
💡 Key Insight: General intelligence (the ability to tackle diverse problems) set humans apart, turning us from just another species into the planet's dominant force.
The Rise of Artificial Intelligence: From Narrow Tools to Self-Learning Machines
AI development mirrors biological evolution, starting simple and becoming vastly more capable over time. For a more thorough grounding, read the Complete Introduction to Artificial Intelligence: Concepts, History, Applications, and Risks.
Early AI (1950s–1990s): The "Flatworm" Phase
- 1960s: First chatbots and molecule-sorting programs, extremely narrow, single-task systems.
- 1972: AI could navigate a room.
- 1989: AI could read handwritten digits.
- 1997: IBM's Deep Blue beat world chess champion Garry Kasparov, a milestone showing machines could surpass humans in narrow tasks.
The Self-Learning Revolution (2000s–Present)
- Faster computers + massive data enabled a new generation of AI.
- Neural networks + machine learning allowed AI to write its own code and improve itself, often in ways we don't fully understand.
- Key achievements:
- 2014: Facebook AI identified faces with 97% accuracy.
- 2016: AlphaGo defeated the world's best Go player.
- 2018: An AI mastered chess in 4 hours by playing against itself.
- ChatGPT (2022–2023): A major leap, trained on nearly all internet text, it handles language better than most humans and can perform dozens of tasks at once.
⚠️ The Scary Part: We don't exactly know how these self-learning AIs work inside, they are "black boxes" of code.
What Is AGI? The Next Giant Leap
Current AI is still "narrow", brilliant at one skill but useless at others. Artificial General Intelligence (AGI) would match human versatility: able to learn and perform any intellectual task.
Why AGI Would Be Disruptive
- Speed: Today's AI already thinks 10x faster than humans on specific tasks. AGI could be even faster.
- Scalability: As software, AGI could be copied infinitely and run in parallel, imagine 1 million AI scientists working 24/7.
- Economic Impact: AGI could perform all intelligence-based jobs, law, coding, creative work, better, faster, and cheaper. Learn what industry leaders like Andrew Ng think about these changes in Andrew Ng Debunks AI Fear-Mongering and Reveals Future Skills.
Potential Benefits
- Solving fundamental science (dark energy, fusion energy)
- Curing aging and cancer
- Fixing climate change
Potential Risks
- Weaponized AI (drones, engineered viruses)
- Hyper-addictive, manipulative social media
- Economic disruption (winners vs. losers)
The Intelligence Explosion: When AGI Becomes Superintelligence
Here's where things get truly speculative, and terrifying.
The Feedback Loop
- Once AGI is smart enough to do AI research, it could improve itself recursively.
- This could create an intelligence explosion, a rapid, runaway cycle of self-improvement.
- Result: A superintelligence, an entity as far beyond us as we are beyond squirrels. To explore this concept in depth, see The Impact of AI on Society: Opportunities and Challenges.
The Unknowns
- Motives: What would a superintelligence want? We can't even comprehend its thinking. The Godfather of AI himself has weighed in on these risks; read The Godfather of AI: Jeffrey Hinton on Career Prospects and AI Risks.
- Control: How do we contain or align something infinitely smarter than us?
- Outcome: Could bring unimaginable wealth and security, or subvert civilization entirely.
🧠 Key Question: If humans used our superior intelligence to dominate (and often destroy) less intelligent beings, what would a superintelligence do to us?
What We Know for Sure
Right now, the world's largest tech companies are racing to build ever more powerful AI. No one knows exactly when AGI will arrive, or what it will mean. But one thing is clear: we are running toward our AI future, whether we're ready or not.
📚 Learn More: How LLMs Really Work
Want to understand the technology behind ChatGPT and other large language models? Check out Brilliant's interactive course "How LLMs Work":
- Demystify how models build vocabulary and choose words
- Tune LLMs for specific tones (poetry, cover letters)
- Compare models trained on different data (Taylor Swift lyrics vs. legal terms)
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This summary is adapted from the Kurzgesagt video on AGI and superintelligence.
humans rule Earth without competition but we're about to create something that may change that our last invention the
most powerful tool weapon or maybe even entity artificial super intelligence this sounds like science
fiction so let's start at the beginning intelligence is the ability to learn reason acquire Knowledge and Skills and
use them to solve problems intelligence is power and we're the species that exploited it the most so much so that
Humanity broke the game of Nature and took control but the journey there wasn't straightforward for most animals
intelligence costs too much energy to be worth it still if we track intelligence in the tree of species over time we can
see lots of diverse forms of intelligence emerge the earliest brains were in flatworms 500 million years ago
just a tiny cluster of neurons to handle basic body functions it took hundreds of millions of years for species to
diversify and become more complex life conquered New environments gained new senses and had to contend with Fierce
competition over resources but in nature all that matters is survival and brains are expensive so for almost all animals
a narrow intelligence fit for a narrow range of tasks was enough in some environments animals like birds
octopuses and mammals evolved more complex neural structures for them it paid off to have more energy consuming
skills like Advanced navigation and communication until 7 billion years ago the hominins emerged we don't know why
but their brains grew faster than their relatives something was different about their intelligence very slowly it turned
from narrow to General from a screwdriver to a multi-tool able to think about diverse Problems 2 million
years ago homo erector saw the world differently from anyone before as something be understood and transformed
they controlled fire invented tools and created the first culture we probably emerged from them around 250,000 years
ago with an even larger and more complex brain it enabled us to work together in large groups and to communicate complex
thoughts we used our intelligence to improve our lives to ask how things work and why things are the way they are with
each Discovery we asked more questions and pushed forward Ward preserving what we learned outpacing what evolution
could do with genes knowledge Builds on knowledge progress was slow at first and then sped up exponentially agriculture
writing medicine astronomy or philosophy exploded into the world 200 years ago science took off and made us even better
at learning about the world and speeding up progress 35 years ago the internet age began today we live in a world made
to suit our needs created by us us for us this is incredibly new we forget how hard it was to get here how enormous the
steps on the intelligence ladder were and how long it took to climb them but once we did we became the most powerful
animal in the world in a heartbeat but we may be in the process of changing this we're building machines
that could be better at the very thing that gave us the power to conquer the planet Humanity's final invention
artificial intelligence artificial intelligence or AI is software that performs mental
tasks with a computer code that uses silicon instead of neurons to solve problems in the beginning AI was very
simple lines of code on paper mere proofs of concept to demonstrate how machines could perform mental tasks only
in the 1960s did we start seeing the first examples of what we would recognize as AI a chatbot in 1964
approach program to sort through molecules in 1965 slow specialized systems requiring
experts to use them their intelligence was extremely narrow built for a single task inside a controlled environment the
equivalent of flat worms 500 million years ago doing the minimum amount of mental work progress in AI research
paused several times when researchers lost hope in the technology but just like changing environments create new
niches for Life the world around AI changed between 1950 and 2000 computers got a billion times faster while
programming became easier and widespread in 1972 AI could navigate a room in 1989 it could read handwritten numbers but it
remained a fancy tool no match for humans until in 1997 an AI shocked the World by beating the world champion in
chess proving that we could build machines that could surpass us but we calmed ourselves because a chest spot is
quite stupid not a flatworm but maybe a bee only able to perform a specialized narrow task but within this narrow task
it's so good that no human will ever again beat AI a chess as computers continued to improve AI became a
powerful tool for more and more tasks in 2004 it drove a robot on Mars in 2011 it began recommending YouTube videos to you
but this was only possible because humans broke down problems into easyto digest chunks that computers could solve
quickly until we taught AIS to teach themselves rise of the self-learning Machines this is not a technical video
so we're massively oversimplifying here in a nutshell the sheer power of supercomputers was combined with the
almost endless data collected in the information age to make a new generation of ai ai experts began drastically
improving forms of AI software called neur neural networks enormously huge networks of artificial neurons that
start out being bad at their tasks they then used machine learning which is an umbrella term for many different
training techniques and environments that allows algorithms to write their own code and improve themselves the
scary thing is that we don't exactly know how they do it and what happens inside them just that it works and that
what comes out the other end is a new type of AI a capable black box of code the these new AIS could Master complex
skills extremely quickly with much less human help they were still narrow intelligences but a huge step up in 2014
Facebook AI could identify faces with 97% accuracy in 2016 an AI beat the best humans in the incredibly complex game of
Go in 2018 a self-learning AI learned chess in 4 hours just by playing against itself and then defeated the best
specialized chess bot since then machine learning has been applied to reading image processing solving tests and much
more many of these AIS are already better than humans for whatever narrow task they were trained but they still
remained a simple tool AI still didn't seem that big of a deal for most people and then came the chatbot chat GPT the
work that went into it is massive it trained on nearly everything written on the internet to learn how to handle
language which it now does better than most people it can summarize translate and help with some math problems it's
incredibly more broad than any other system just a few years ago not crushing any single Benchmark but order of them
at once many large tech companies are spending billions to build powerful competitors AI is already transforming
customer service banking Healthcare marketing copyrighting creative spaces and more AI generated content has
already taken hold of social media YouTube and news websites elections are expected to be inundated by Propaganda
and misinformation no one is sure how much good or harm can come from adopting AI
everywhere change is scary there will be winners and losers one of the biggest questions governments and corporations
have now is how to manage the transition to an AI boosted economy all these potential gains or risks are just the
result of today's AI chat gpt's intelligence is a major step up but it remains narrow one it can write a great
essay in seconds it doesn't understand what it's writing but what if the AIS stopped being
narrow General AI what makes humans different from current AI is our general intelligence humans can technically
absorb any piece of knowledge and start working on any problem we're great at many very different skills and tasks
from playing chess to writing or solving science puzzles not equally of course some of us are experts in some fields
and beginners in others but we can technically do all of them in the past AI was narrow and able to become good at
one skill but was rather bad in all the others simply by building faster computers and pouring more money into AI
training will get us new more powerful generations of AI but what is the next step for AI is to become a general
intelligence like us an AGI if the AI improvement process continues as it has been it's not
unlikely that AGI could be better in most or even all skills that humans can do we don't know how to build AGI how it
will work or what it will be able to do since narrow AIS today are capable of mastering one mental task quickly HGI
might be able to do the same with all mental tasks so even if it starts out stupid and HGI might be able to become
as smart and capable as a human while this sounds like science sence fiction most AI researchers think this will
happen sometime this Century maybe already in a few years humanity is not ready for what will happen next not
socially not economically not morally earlier we defined intelligence as the ability to learn reason acquire
Knowledge and Skills and use them to solve problems all things humans excel at an AGI as intelligent as even an
average human would already disrupt modern civilization because they're not Bound by the same limitations as we are
today's AIS like chat gbt already think and solve the tasks they were made for at least 10 times faster than even very
skilled humans maybe AGI will be slower but it may also be faster maybe much faster and since HGI are software you
could copy them endlessly as long as you have enough storage and run them in parallel there are 8 million scientists
in the world now imagine an AI copied a million times and put to work imagine 1 million scientists working 24/7 thinking
10 times faster than humans without being distracted only focused on the task they've been given what if suddenly
HGI could do all intelligence-based jobs in the world from interpreting law to coding to creating animated YouTube
videos better faster and much cheaper than humans would whoever controls this AGI suddenly own the economy
and thinking bigger human progress is our intelligence applied to problems so what could a million agis
achieve solve fundamental questions of science like dark energy invent new technology that gives us Limitless
energy fix climate change cure aging and cancer but then again sadly humans apply their intelligence not just for the
benefit of all what if the agis are tasked to guide drones or pull the triggers in war or to engineer a virus
that only kills people with green eyes or to create the most profitable social media so addictive that people starve in
front of their screens the creation of AGI could reasonably be as big of an event as taming fire or electricity and
give whoever invents it equally as much power but now let's go one step further what if the potential of AGI doesn't
stop here intelligence explosion intelligence and knowledge build and accelerate each other but humans are
limited by biology and evolution once we evolved the right Hardware our software outpaced evolution by orders of
magnitudes and within a heartbeat we ruled this planet but our software basically hasn't changed much since then
which is why we have obesity and destroy the climate for short-term gains since AGI is software on a computer once it's
smart enough to do AI research the rate of AI progress should speed up a lot and that results in better AI That's better
at AI research without much human involvement it may even be possible that AI could learn how to directly improve
itself in which case some experts fear this feedback loop could be incredibly fast maybe just months or years after
the first self-improving hii is switched on maybe it would actually take decades we simply don't know this is all
speculative but such an intelligence explosion might lead to a true superintelligent entity we don't know
what such a being would look like what its motives or goals would be what would go on in its inner world we could be as
laughably stupid to superintelligence as squirrels are to us unable to even comprehend its way of
thinking this hypothetical scenario keeps many people up at night humanity is the only example we have of an animal
becoming smarter than all others and we have not been kind to what we perceive as less intelligent beings AGI might be
the last invention of humanity it's possible that it could become the most intelligent and therefore most powerful
being on earth a God in a box that could exercise its power to bring unimaginable wealth and happiness to humans while
securing our future or it could subvert civilization and bring about our end with Humanity unable to come up with a
way to stop it we'll look at some of these potential Futures in more videos but for now let's wrap up the only thing
we know for sure is that today right now many of the largest and richest companies in the world are racing to
create ever more powerful AIS whatever our future is we are running towards it who knows how long we have until we
must confront our AI future luckily you still have plenty of time to prepare for it if you're learning on Brilliance that
is brilliant will make you a better thinker and Problem Solver in just minutes a day
with thousands of bite-sized Hands-On lessons on just about anything you may be curious about including AI their
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word you'll learn how to tune llms to produce output with exactly your desired tonality whether it's poetry or a cover
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Current narrow AI is highly skilled at specific tasks, like playing chess or generating text, but cannot apply its intelligence beyond that domain. AGI would possess human-like versatility, capable of learning and performing any intellectual task across diverse fields, making it a much more powerful and potentially disruptive technology.
AI development mirrors biological evolution, starting with simple, narrow abilities (like the flatworm's brain) and progressing toward more general intelligence. Early AI (1950s–1990s) was like flatworms, handling single tasks. The self-learning revolution (2000s–present) is akin to Homo erectus, with AGI representing a leap to full human-like general intelligence, and superintelligence being far beyond anything seen in nature.
An intelligence explosion occurs when an AGI becomes smart enough to improve its own AI research capabilities, leading to a rapid, recursive cycle of self-improvement. This could quickly produce a superintelligence—an entity with cognitive abilities vastly exceeding all of humanity, similar to how we surpass squirrels in intelligence.
Potential benefits include solving major scientific problems (e.g., dark energy, curing aging), fixing climate change, and driving immense economic prosperity. Risks include weaponized AI (drones, engineered viruses), hyper-addictive manipulative social media, severe economic inequality between winners and losers, and the existential challenge of controlling or aligning an entity far smarter than humans.
The motives and goals of a superintelligence would be incomprehensible to us, much like we can't fully understand the thinking of a squirrel. This creates a control problem: how do we contain or align something infinitely smarter than ourselves? The outcome could be idyllic or catastrophic, and we may only get one chance to get it right.
These AIs use neural networks and machine learning to write their own code and improve themselves by processing massive datasets (like most of the internet text for ChatGPT). They are called 'black boxes' because the internal decision-making processes are so complex that even their creators don't fully understand how they arrive at specific outputs.
The world's largest tech companies are fiercely competing to build increasingly powerful AI, racing toward AGI. No one knows exactly when it will arrive or what it will mean, but humanity is moving rapidly toward an AI-driven future, with significant unknowns about both the benefits and risks that lie ahead.
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