13/09/2026
🧠 Why can’t a single neuron solve XOR?
XOR looks like a very simple logical operation… but it taught us one of the most important lessons in Neural Networks. 🤯
A single neuron / perceptron can learn only a linear decision boundary — basically, a straight line.
But XOR is not linearly separable.
That means no matter how we change the weights and bias, one single neuron cannot correctly classify all four XOR combinations.
💡 The solution?
👉 Add a hidden layer.
By combining multiple neurons, a neural network can learn non-linear patterns that a single neuron cannot.
This simple XOR problem is one of the best ways to understand WHY neural networks need hidden layers.
Swipe through all 9 slides to understand it visually! ➡️
📚 If you're learning: • Artificial Intelligence
• Machine Learning
• Neural Networks
• Deep Learning
• Perceptron
• XOR & Linear Separability
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