Neural Networks Intuition

Neural networks are inspired by the brain, but don't need to be mysterious. Let's build intuition.

Prefer to get the concepts straight before writing any code? How Neural Networks Actually Work covers neurons, weights, layers, loss, gradient descent, and backpropagation in 45 minutes with no code and no math notation. This module will feel much easier afterwards.

What is a Neural Network?

Layers and Neurons

How a Neuron Works

Key Takeaways

• Neural networks are layers of mathematical transformations
• Each neuron computes: weighted sum + bias + activation
• More layers = ability to learn more complex patterns
• The "learning" happens by adjusting weights and biases
• Use for complex patterns that simpler models can't capture