Understanding Uncertain Events: A Deep Dive into Three Types

The three types of events refer to uncertain events, which cannot be inferred from past events and cannot determine whether they will occur in the future. For example, new technologies - when will scientific principles become technologies? When will technologies become products, and when will products become popular in the market and become economic flows? It's impossible to infer, and we cannot say that the time it takes to invent an airplane is the same as the time it takes to invent a spaceship. We also do not know how much time it will take to invent the internet after inventing the telephone and telegraph. These types of events are called uncertain events.