I was amazed by this research. We can say, they merely rolled the pen and made up so many stuff. But what they actually did was they noticed such tiny details and developed it into something with great impact. We should be ashamed – we are using pens every day but never thought about, say, “hey, why can’t this image rotate with my pen?”. In our effort to find something majestic, we tend to ignore or underestimate what impact small changes can have. Make a big difference starting from something small – to me, that’s the beauty of research.