Here's what it'll be like to eat at restaurants of the future

It must have seemed like a revolutionary idea to diners of the 1920s -- people on roller skates delivering food straight to their driver's side window. Suddenly, the food that families were used to eating around a dinner table now arrived on trays or in bags, ready to be eaten on the go. Little did they know fast food was on the brink of explosion. Nearly 100 years later, restaurants are on the brink of another massive change: robot automation. The best estimates find that up to 50% of jobs could be automated by the late 2030s, with restaurant workers among the most vulnerable to displacement.