Solomonoff's theory of inductive inference is a way of using computers to make predictions about the future. It works by taking snippets from different sources of information and using them to build a model of the world. This model can then be used to make predictions about what will happen next. To do this, the computer uses a technique called 'probability theory'. Probability theory is a mathematical way of finding out how likely something is to happen. By combining all the snippets of information, the computer is able to come up with an idea of what will happen in the future. Then, when something new happens, the computer can use that information to make an improved prediction.