At a lot of restaurants, a DoorDash order lands on the register without a single person at the restaurant touching it. Steve Papa, who sold his search company to Oracle for $1.1 billion, says the same thing is coming for every piece of software your company pays for. Software people call that headless. The screen you tap and the machine that tracks the order got split apart, and the machine learned to take orders from other software. Retail did this ten years ago and nobody outside the…