Is this confusion just so that we can ask the type of a nil interface value at runtime? A man orders coffee in a restaurant. "Would you like it with or withou

Is this confusion just so that we can ask the type of a nil interface value at runtime? A man orders coffee in a restaurant. "Would you like it with or without cream?" "Without" A few minutes later the waiter returns. "I'm sorry sir, we've run out of cream. Would you like it without milk instead?"