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This is an interesting article from Nature about scanning your brain while you are sleeping, in order to decode the visual content of your dreams by classifying the reported content

Some beleive there's a world after death, and some don't. However, we left a bunch of stuff to those who are still alive after our own death. It is easy to burn ex's loveletters and throwing away the lovely teddybear we had since childhood, we simply write those down in a will if we remember to write one, but what happens when it comes to our virtual possesions is often ignored. Nowadays people have email address, facebook account, online banking account, and even a password for locked albums on their mobile devices.

The way we organize and display information could have a strong impact on how users will retrieve it, including searching display on Google, and how to decide which kind of vegetables should be placed on the top shelves. Nowadays mobile devices have been an essential part of our lives, online app market is expanding, and the rules and the categories are organized and displayed becomes a hot topic since it affects the revenue directly.