Ask HN: What have you learned in 2012?

Pertains to anything and everything, be it life in general or technical/scientific. What I've learned: 1.) Simple interfaces made of white space, quality images, and clear information flow are ESSENTIAL KNOWLEDGE. 2.) I need to be great at one group of skills and have a general understanding of the others. Makes everything run smoother and gives each team member their chance to shine at what they do best. 3.) Humanity has replaced the geocentric model with the egocentric model. We have come a long way but this model is just as delusional and dangerous for the long-term survival of the species. 4.) Savor this moment in space and time, there will never be another quite like it. All the sights, sounds, and stories are similar but it's not about if you've seen it before or not, it's if you're enjoying them still and learning from them. Just my two cents. Your turn.