I've been writing a bit about solar energy lately, for example here, here, and here. Reflecting on the topic, I also came to think of this splendid song by the Beatles. I noticed that the video has been viewed more than 750,000 times times and rated more than 1,700 times – with an average rating of 5 stars out of 5. My advice to you: Think ”out of the box” while watching the video. And if you come up with a great idea during the 3 minutes, that the video lasts, please let me hear from you.