Developing a world that thinks and builds long-term.
I had two or three, but whenever I research them, I find out that people on here had them five years ago. My favorites so far are Salman Khan's online education program, and Michael Pawlyn's use of solar plants to desalinate water, which then is used to water greenhouses in deserts, which then begin the process of de-desertification; a totally green process that produces crops, energy, and salt minerals, all of which can be sold. Just for kicks, I'd also like to see mankind colonize Mars, and get all of our eggs out of this first basket.
Anything. Really. Anything.
Imitating a trumpet, or the chirp of a cricket.
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A reply on Talk: Misha Glenny: Hire the hackers!
A comment on Conversation: Why can humans, without any prior planning, naturally synch in rhythm and music but if you tell a group to all move together, they can't?
As to the reason why music grips your emotions to the core, and makes you feel the feelings of the composer, though interpreted through your own experience, the fellow who posted below me has explained it quite well.
A comment on Conversation: Do you think it's even possible to be 100% happy and fulfilled?If yes, what's your way to do it? If no, why is it so deeply essential to us?
Long answer: It is not possible, because we are creatures of emotion, of hormones, and of desires. Even the most Zen of Buddhists must still battle against passion. Other religions embrace passion, and preach indifference to harm as the solution to negative emotions. The belief in an ultimate good, an ultimate truth, and an ultimate sense of meaning are also quite comforting, but none of this promises happiness all the time, or even to your greatest level of capacity. We all know that material wealth and comforts aren't the source of happiness (though it could be argued that having them does take a load off of one's mind in terms of where lunch will come from).
The truth is that there's no way to achieve complete happiness, and the reason it is "essential" is merely because we have been raised to believe that we deserve it. It is not essential. Really, nothing is essential. That sounds nihilistic and existential, but really it's the same idea that Solomon puts forth in Ecclesiastes. Your life doesn't mean anything, nobody's does. If you are religious, then the main point of this existence is to prepare for moving on to a better existence, and nothing in this existence matters (except those preparations). If you are an atheist, then there is no better existence, and from an objective, long term point of view, nothing matters at all. Either way, it is up to you to give your own life meaning and fulfillment. Personally, I find the thought that nothing much matters a comfort in itself: it means that if I screw things up it's no big deal. My life can be world-altering, or I can subsistence farm in Tanzania. The one is no more valuable than the other.
A comment on Conversation: Has specialization or focus on expertise been an advantage to us or a disadvantage?
So, specialization, while important, is dangerous at its extremes just like anything else. Consider the cases of autistic-savants, who can memorize whole books in minutes, or tell you whether today's date in ten thousand years is a Sunday, but can't tie their shoes. If we specialize too much, we may find that we endanger our ability to interact outside the tiny area of our knowledge.