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The race toward Artificial General Intelligence (AGI) continues to accelerate, with each breakthrough in current AI systems sparking both excitement and speculation.
Despite impressive advancements in large language models like Grok 3 and others [1], we’re still far from achieving true AGI — machines that can understand, learn, and apply knowledge across domains with human-like flexibility. As fascinating as current progress is, I’m increasingly convinced that classical computing alone cannot deliver practical, scalable AGI. The quantum computing revolution isn’t just beneficial for AGI development — it’s essential. Here’s why.
# The Massive Computational Demands of AGI Training
Current AI models require enormous computational resources, and the requirements grow exponentially with each attempt to improve their capabilities. Training a single large language model can cost tens of millions of dollars in computing resources alone.
The computational architecture needed for AGI would dwarf our current models. While GPT-4 and other [AI competitors](https://peakd.com/ai/@simplestack/grok-3-vs-chatgpt-deepseek-and-other-ai-competitors?ref=simplestack) operate with hundreds of billions of parameters, a system capable of true general intelligence might require trillions or quadrillions — numbers that quickly become impractical on classical hardware.
Classical computing operates in a binary fashion — everything reduces to 1s and 0s processed sequentially. This fundamental limitation means that doubling computing power requires roughly doubling the hardware. But AGI requires exponential improvements in processing power. How can we possibly scale to such heights without a fundamentally different computing paradigm?
# Data Hunger: Beyond What Classical Systems Can Digest
The data requirements for training AGI are staggering. Current AI models consume vast datasets — trillions of tokens of text, billions of images, and countless hours of video and audio. Yet they still fail at many tasks requiring common sense reasoning, causal understanding, or true comprehension.
AGI would require orders of magnitude more data, processed in far more sophisticated ways. It needs to form complex interconnections between disparate knowledge domains in ways our current systems cannot. Classical computing struggles with these interconnected, high-dimensional problem spaces that AGI demands.
The question becomes: how can we possibly process and meaningfully interconnect such vast data quantities when our current systems already stretch the limits of classical computing?
# The Unsustainable Energy Crisis in AI Development
Perhaps the most pressing practical limitation to AGI development is energy consumption. According to recent research, up to 30% of the power used to train modern AI models is completely wasted [3]. As models scale, their energy requirements grow dramatically.
Consider this: if current AI systems already strain our power grids, what would AGI require? Estimates suggest data centers may account for 1.2% of global carbon emissions by 2027 [3]. AGI development under classical computing paradigms could exponentially increase this figure.
The environmental impact of AGI development is rarely discussed in tech circles, but it represents one of the most significant practical barriers to progress. We can’t simply build ever-larger data centers without considering power constraints.
Quantum computing offers a potential solution. Quantum systems like Microsoft’s Majorana 1 with its topological qubits or Quantum Source’s photon-atom approach operate fundamentally differently, enabling certain computations with dramatically lower energy requirements than classical systems [2, 7].
# The Consciousness Conundrum: What Are We Even Building?
Beyond practical considerations lies a deeper philosophical challenge: we don’t understand consciousness — the very thing many believe underlies general intelligence.
Mathematical models of consciousness have been proposed, attempting to describe conscious experience and its relation to physical systems [4]. But these remain speculative. We lack a definitive understanding of what consciousness is, how it emerges, or whether it can be created artificially.
This poses a fundamental question for AGI research: If we don’t understand consciousness, how can we hope to create generally intelligent systems? Or does AGI require consciousness at all?
Some researchers, including Roger Penrose and Stuart Hameroff, hypothesize that consciousness may have quantum origins — that quantum phenomena like superposition and entanglement could explain aspects of consciousness [6]. If true, this would suggest that classical computing might be inherently incapable of supporting consciousness-based intelligence.
# AI Today: Sophisticated Pattern Recognition, Not Intelligence
Let’s be clear about what current AI systems actually do. Despite impressive capabilities, today’s models are fundamentally sophisticated pattern recognition systems. They predict likely responses based on statistical patterns in their training data rather than exhibiting true understanding or reasoning.
Large language models don’t “know” anything in the human sense — they predict token sequences based on observed patterns. They have no internal model of reality, no true causal understanding, and no capacity for genuine reasoning beyond statistical association.
> I’ve worked with AI models extensively, and it’s clear they’re fundamentally different from human intelligence. They excel at specific tasks but lack the general adaptability and understanding that characterizes human cognition — One of my colleagues working as a Data Scientist
While these systems can mimic reasoning through clever prompting, they fundamentally operate through statistical prediction rather than conceptual understanding. Can we bridge this gap simply by scaling current approaches? Many leading AI researchers now doubt this is possible.
# How Can We Measure Reasoning?
The problem becomes even more complex when we consider how to measure reasoning — a core component of intelligence. Despite decades of research, we lack robust metrics for evaluating genuine reasoning capabilities as opposed to sophisticated pattern matching.
Current benchmarks test for specific capabilities, but these often fall prey to Goodhart’s Law — once a metric becomes a target, it ceases to be a good metric. Models can be optimized for specific benchmarks without developing general reasoning capacities.
What would constitute proof of reasoning in an artificial system? How would we distinguish genuine understanding from increasingly sophisticated mimicry? These questions have no clear answers, complicating our path to AGI.
# Brain Complexity: More Connections Than Stars
The scale of neural complexity in even a small brain region is humbling. Researchers have recently mapped just one cubic millimeter of human brain, revealing approximately 57,000 cells and 150 million synaptic connections [5].
The entire human brain contains roughly 86 billion neurons with an estimated 100 trillion synapses — more connections than there are stars in the observable universe. The resulting dataset from mapping this cubic millimeter alone consumed 1.4 petabytes of storage [5].
Even if we could map the entire brain’s connectome (which remains far beyond our current capabilities), would we understand how consciousness and intelligence emerge from these connections? The brain’s operation likely involves quantum effects that classical computers simply cannot simulate efficiently.
# Units of Consciousness? Mathematical Representations?
Can consciousness be broken down into fundamental units? Can it be mathematically represented? Recent research attempts to develop mathematical models of consciousness, exploring what structures might describe phenomenal experience [4].
These models attempt to account for consciousness’ unique characteristics — its subjective, first-person nature and the “hard problem” of how physical processes give rise to subjective experience. But they remain speculative and incomplete.
If consciousness emerges from quantum mechanical processes in the brain, as some theories suggest, then classical computers — which cannot efficiently simulate quantum systems — may be fundamentally incapable of hosting consciousness-based intelligence.
# Does Intelligence Require Consciousness?
This leads to the central philosophical question: Does general intelligence require consciousness? If so, at what level or degree?
Some argue that consciousness is essential for the kind of flexible, creative problem-solving that characterizes general intelligence. Others suggest that intelligence and consciousness are separable, and we might create non-conscious AGI systems.
> The latter scares the sh*t out of me
The relationship between intelligence and consciousness remains one of the most profound unsolved problems in cognitive science and philosophy of mind. If consciousness is necessary for AGI and has quantum origins, then quantum computing becomes not just helpful but essential.
# Quantum Computing: Closer to Nature’s Computing Model
Quantum computing represents a fundamentally different computational paradigm that more closely resembles how nature itself computes. While classical computers process information linearly through discrete binary states, quantum computers leverage superposition, entanglement, and quantum coherence — properties that may be crucial for modeling consciousness and intelligence.
Recent breakthroughs like Quantum Source’s approach combining atoms and photons enable a deterministic rather than probabilistic approach to quantum computing [2]. This could potentially resolve key limitations in scalability and efficiency that have hampered quantum computing development.
Similarly, Microsoft’s Majorana 1 system with topological qubits represents a significant advance toward practical, scalable quantum computing [7]. These systems are designed to scale to millions of qubits — the kind of scale that might be necessary for AGI.
> The quantum computing field is advancing rapidly, with approaches like topological qubits potentially solving the error-correction and scaling problems that have limited quantum computing’s practical applications.
Quantum systems can solve certain problems exponentially faster than classical computers and model complex systems that classical computers struggle with. If intelligence and consciousness emerge from quantum effects in the brain, quantum computing may be the only viable path to AGI.
# Conclusion
The path to true AGI faces formidable challenges — computational demands, data requirements, energy constraints, and fundamental questions about consciousness and intelligence that we’ve barely begun to answer.
Classical computing, despite its remarkable progress, appears fundamentally limited in addressing these challenges. The exponential scaling problems, energy requirements, and inability to efficiently model quantum systems suggest that classical approaches to AGI will hit insurmountable barriers.
Quantum computing offers a path forward that aligns more closely with nature’s own computational methods. It potentially addresses the scaling and energy efficiency challenges while providing a framework that could potentially support consciousness-like processes, if they prove necessary for AGI.
The quantum bridge to AGI isn’t just about computational advantage — it’s about a fundamental paradigm shift in how we approach artificial intelligence. Just as the brain doesn’t operate like a classical computer, true AGI likely won’t emerge from classical computing architectures alone.
As we continue to pursue the dream of AGI, quantum computing increasingly appears not as a helpful accelerator but as an essential foundation. The future of intelligence — artificial or otherwise — may be quantum at its core.
> What do you think? Is quantum computing truly essential for AGI, or could classical approaches eventually achieve it through sheer scale? Share your thoughts in the comments below.
References:
1. https://medium.com/lets-code-future/grok-3-is-here-heres-what-to-know-8c60f1d88cef
2. https://thequantuminsider.com/2025/01/30/quantum-sources-scalable-photon-atom-technology-enables-practical-quantum-computing/
3. https://news.engin.umich.edu/2024/11/up-to-30-of-the-power-used-to-train-ai-is-wasted-heres-how-to-fix-it/
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC7517149/
5. https://www.scientificamerican.com/article/a-cubic-millimeter-of-a-human-brain-has-been-mapped-in-spectacular-detail/
6. https://philarchive.org/archive/MALQMAv1
7. https://medium.com/@ed.wacc1995/is-this-the-future-of-ai-and-quantum-computing-microsofts-majorana-1-4e8fdd0168cb
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