Despite all the problems the world is facing now, and even though everything is changing so fast that every one of us is afraid sometimes of getting left behind, I still think it's a wonderful time to be alive. Even if all you like to do is watch, there has never been a better time to be a passive learner. And if you're genuinely curious about how the world works and you have a little energy and a lot of focus, you can contribute in almost any area. So many cool things could be done, so many problems could be fixed, with just a little creativity.