Mind Matters Natural and Artificial Intelligence News and Analysis

TagG. K. Chesterton

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Twin Moons over Alien Desert City with Pyramids

Is the Brief Window for Finding ET Closing?

According to some scenarios, we could be past our best-before date for contacting aliens

Readers will recall that we have been looking at science writer Matt Williams‘ analysis of the various reasons that we do not see extraterrestrials except at the movies. We’ve listed (below) the many interesting ideas he has covered but now here’s a new one!: What if there is only a brief window during which a space-faring civilization can even develop? For the sake of the Brief Window Hypothesis, the key parameter is L. In this case, it can be defined as the amount of time a civilization can be expected to exist before succumbing to an extinction-level event. This could take the form of a natural disaster (an asteroid impact) or come in the form of self-destruction (nuclear or biological…

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Vintage tone beautiful pedestrian stone bridge and knee-wobbling vantage point over the second tier 69-foot drop of Multnomah Falls lower in winter time. Natural and seasonal waterfall background

How Do You Know You Are Not the Only Human Who Ever Existed?

Can evidence or logic help you decide? You might be surprised…

Solipsism is the belief that you are the only human being who has ever existed; all others are the inventions of your imagination. G.K. Chesterton famously received a letter from a reader who commented (I paraphrase), ‘Solipsism is a compelling metaphysical position. I’m surprised more people don’t believe it.” At Scientific American, columnist John Horgan describes solipsism as a central dilemma of human life. In a recent essay, “How do I know I’m not the only conscious being in the universe?”, he writes, It is a central dilemma of human life—more urgent, arguably, than the inevitability of suffering and death. I have been brooding and ranting to my students about it for years. It surely troubles us more than ever…