What is the greatest threat to the future of our species?

“Ego. It all boils down to the need for power by a relatively few people.Looking back over time, all human atrocities were committed by someone, usually male, wanting to assert his beliefs, opinions, phobias, etc. on others because only his were “TRUE.” Many were in the name of religion. Popes who were supposedly infallible, tortured, crucified, held “crusades”, against anyone they thought could threaten the status quo. Ethnic cleansing in the name of religions, supremacy, whatever. The quest for power and control are what is at play today {and always)in world politics, In the meantime, while power hungry morons are fighting to prove who is most important, and who has the most impressively sized biceps and genitals,some people are actually trying to address the only really important issue – CLIMATE CHANGE…”
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"The greatest threat is not diversifying our food and resources.  By food, I mean agricultural crops.  If something were to happen, such as the effects of climate change, severe droughts and crop failure would wipe out so much food that a lot of marginalized groups would suffer.  That would gradually wipe out everyone except the rich."

“Naturally, this question implies the ‘survival’ of our species, but I interpret it slightly differently. As I see it, the concern is for the wellbeing, or health, of our species. From this standpoint, the greatest threat is already in full swing. The threat is that we become so disconnected from the natural world that we forget what it feels like to be alive. The majority of humans are clinging to the memories and instincts of our ancestors and the few indigenous humans left. Yet, in 20 years, who’s to say we won’t have gone that much further down the path we’re on that we forget these feelings and memories altogether? This is highly probable in my opinion and would be like getting sick, throwing out the medicine, and eventually just getting so used to being sick that we choose not to get better…”
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"We are nearing what Ray Kurzweil calls ‘the singularity’. Our technological progress is increasing so rapidly that it will continue to evolve along an exponential curve.  This means either doom for most life forms or a crossing over into a new realm of existence.  Kurzweil sees Genetics (reprogramming our own biology), Robotics (greater-than-human abiotic intelligence), AI (self-learning machines), and Nanotechnology (manipulating matter at atomic scale) as the technological gateway to our fate."

“We are our own greatest threat. We are all so worried about people dying all over the world, due to the machinations of other people, the spread of disease, famine, drought, wars, genocide and natural disasters, but consider what would have happened if all the calamities of the past had not happened. All those people who died would not have met untimely ends and would all have procreated as most people are doing now….”
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“The most devastating thing for humanity is FORCING UNIFORMITY. It means imposing the same culture, rule or dharma on everyone in the world. This danger is quite real because every powerful person or group is trying to impose their values on everyone else to bring uniformity in the world….”
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