All technology can be dangerous. People have been applying inventions to cause harm since pretty much forever. Scores of deaths are due to tools and technology, from fire to nuclear weapons. (Intelligence can be dangerous too, for that matter, but that’s maybe out-of-scope here…)
Even without disastrous intent, technology-based accidents happen all the time. There does seem to be a trend where newer inventions are more dangerous—think of cars before seatbelts and airbags. It takes a while to fine-tune machines and perform safety features. Another example is the Therac-25, which was an Xray machine that caused extensive radiation damage to patients because of programming errors.
Artificial intelligence would be terrible if humans became over-reliant on it and started implanting it in everyday life before sufficient testing had worked out the kinks.
Most other answers will likely focus on the excitement surrounding the “terminator” threat of AI. My feeling is that this is not an immediate concern. It’s going to take a long period of time to get really good AI that’s useful in everyday life, let alone “strong AI” that can develop its own destructive agenda. But if people get greedy and try to shove AI solutions everywhere too soon, we’re going to have a lot of hilarious epic AI fails (at best) and tragic, avoidable disasters (at worst). AI is going to be terrible because there will be flaws and because people will get excitable looking for ways to employ this trendy tool before it’s ready.
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But again, this isn’t precise to AI; this is how all technology works.
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