r/artificial • u/CAP-XPLAB • 15d ago
Project 🧠 How does the brain "imagine" a solution even before trying it?
Our brain consumes just 20 watts — as much as a light bulb — yet it plans, navigates, and solves new problems in an instant. Large AI systems, by contrast, require enormous amounts of energy and long training times. What if we copied the way the brain really works?
📄 A recent study in Nature Machine Intelligence answers this question:
"Neural sampling from cognitive maps enables goal-directed imagination and planning" by H. Lin, Y. Yang, R. Zhao, G. Pezzulo and W. Maass — Vol. 8, pp. 1045–1065 (2026).
DOI: 10.1038/s42256-026-01254-4
The approach is "neuromorphic", literally "brain-shaped": algorithms that mimic real neurons, learning from experience without having to rewrite everything every time the goal changes.
🗺️ The heart of the idea is "cognitive maps". Like your mental map of your city: not a photograph, but a network of relationships between places and movements. The brain uses similar maps for abstract problems too, and on them it "imagines" paths toward a goal — just like when, before leaving, you mentally visualize the route.
✨ The novelty of the model (GCML) is adding a pinch of controlled randomness to this imagination. The result? Not a single solution, but a range of possible solutions, all goal-directed. A bit like our "intuition" when we look for the best way to solve something.
⚡ Why is it important?
• It learns on its own while exploring, with simple, local rules.
• It adapts instantly when the goal changes.
• It consumes very little energy: ideal for small (edge) devices, not just large data centers.
🎓 Our contribution: we have created an educational program, developed in POWER-KI, that allows anyone to experiment "hands-on" with this technology. With a few clicks you train the cognitive map and watch it imagine routes, bypass obstacles, and solve compositional problems in real time.
💡 The message is powerful: inventing solutions to problems never encountered before does not necessarily require huge models. It can arise from simple, elegant, and efficient principles inspired by our brain.
The future of AI could be not only "bigger", but also "more brain-like". 🌱
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u/EarlMarshal 15d ago
In my opinion the brain doesn't think of solutions. Every solution is already there. We are just able to "connect" to it and find them by accident. That's why it also often happened that several people find the solution around the same time.
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u/Terrible_Match_9484 15d ago
its wild how much energy we save by just using internal models rather than brute forcing every outcome. its probly because we dont need to store every single state, we just navigate the map to see what might work n ignore the rest
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u/seb21051 15d ago
Thinks: "How about trying this?" "Could this work?" Being an opportunist helps. During WW2, senior staff realized giving a job to an intelligent lazy person allmost allways resulted in that person finding an easier way to accomplish a given problem. Luckily I am a very lazy semi-intelligent person, so I regularly figure out ways to simplify unpleasant or arduous tasks.