Machine learning is algorithms for solving problems previously only subject to humans. We will train the computer to see, hear and understand, or find dependencies in such data, where even a human could not figure it out.
The essence of machine learning is that a computer analyzes a large amount of data and independently finds dependencies in them. For example, if you show him a lot of photos of cats and dogs, and tell him where is the cat and where is the dog, then as a result, the algorithm, seeing the new photo, will be able to tell what kind of animal is captured on it.