I was watching a TEDx Talk by Gautam Khetrapal back in November of last year. Mr Khetrapal asked his audience if they had a smartphone. The camera did not show the audience, but by the look of his expression, I am assuming a majority of them put their hands up. He then asked how many of them had the same phone in the past 2 years. Again, the camera did not show the crowd, but through his reaction, hardly anyone put their hands up.