I don’t own, and have no intention of owning, a MacBook as I own a touchscreen Windows laptop however this approach to make it support touch is genius. They use a mirror at the top of the screen and some image processing to work out where the finger is. They can determine if the finger is actually touching the screen by whether it is touching its reflection - very clever lateral thinking.
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This is an old post (March 2009) that someone retweeted but still holds true on how to work out if an expert is really an expert. It also is a guide how not to fall into common traps that so-called experts fall into.
Austin Kleon wrote an article about how we can get used to anything. Something is new and exciting but before too long it becomes the normal and we are no longer excited by it. It seems to be part of our nature.
The top shelf of books in my study has the books that have had the most impact on me or that I have enjoyed reading the most.