The world as we know it can end multiple times, with different ways of knowing it.
The physical world will remain in its place (unless a very improbable event happen), but things changed drastically around many singular events, several in our lifetimes. Personal computers, internet, 9/11, iphone, snowden, facebook, and more are some examples that meant an end of the world as we used to know it. Probably AIs will be more akin to those examples than, i.e. end of civilization or extinction.
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The world as we know it can end multiple times, with different ways of knowing it.
The physical world will remain in its place (unless a very improbable event happen), but things changed drastically around many singular events, several in our lifetimes. Personal computers, internet, 9/11, iphone, snowden, facebook, and more are some examples that meant an end of the world as we used to know it. Probably AIs will be more akin to those examples than, i.e. end of civilization or extinction.