The text discusses how code editors like Flux use static analysis to provide autocompletion features while writing code. This is achieved through a technique called type inference, which analyzes a program's code without running it to infer the types of its expressions and variables. The article explains that type inference involves generating equations based on how expressions are used within the program and solving those equations to determine the types of each expression. It also mentions that this process can help identify errors in programs before they are run, making it a valuable tool for developer productivity.