Why do we still have people manually taking orders at fast food restaurants? It seems like the largest point of failure in the whole fast food experience. A person pulls up and says what they would like, the worker has to understand them and then correctly key in the correct order. Why couldn't I just pull up and key in the order myself? I think that the cash registers at the major fast food chains have visual keyboards for entering the order information, why not just let the customer punch in their order themselves. Many people pay with credit cards now, and you don't really need human intervention for that. One of the greatest conveniences at the gas station is being able to pay and pump all at the same spot. And, even major groceries and home stores allow people to do self check out. So, why not make fast food faster and eliminate the person who takes the orders.
While we are on the subject, couldn't we have an express lane for people who send in their orders via text message or email? Think about it. A person orders ahead by sending a text message, and then they simply pull up to the express lane, pay, and drive away with their food.
That would be fast food.