Change the question to "What browser do you use?" - in that very same video - and you get much better answers. Often from the very same people. You can make a

Change the question to "What browser do you use?" - in that very same video - and you get much better answers. Often from the very same people. You can make a video asking people in Times Square what a preposition is, and get similar quality of response. That doesn't mean they don't know the difference between 'and' and 'but'. As for opinion: people can distinguish between the fast one and the slow one.