> Confusion between user-input and data – programs can’t reliably distinguish between interactive (keyboard) input, pasted/”IPC” input and other forms of data e

> Confusion between user-input and data – programs can’t reliably distinguish between interactive (keyboard) input, pasted/”IPC” input and other forms of data entry. No! This is a feature. The actual core data-processing part of a program should not care where its data comes from. There needs to be separation between engine and interface, and different interfaces are needed for different types of input scenarios.