(Roughly) Daily

Posts Tagged ‘Astronomer Royal

“You may delay, but time will not”*…

It turns out that our feeling that things are speeding up has some basis in science…

Earth’s changing spin is threatening to toy with our sense of time, clocks and computerized society in an unprecedented way — but only for a second.

For the first time in history, world timekeepers may have to consider subtracting a second from our clocks in a few years because the planet is rotating a tad faster than it used to. Clocks may have to skip a second — called a “negative leap second” — around 2029, a study in the journal Nature said Wednesday.

“This is an unprecedented situation and a big deal,” said study lead author Duncan Agnew, a geophysicist at the Scripps Institution of Oceanography at the University of California, San Diego. “It’s not a huge change in the Earth’s rotation that’s going to lead to some catastrophe or anything, but it is something notable. It’s yet another indication that we’re in a very unusual time.”

Ice melting at both of Earth’s poles has been counteracting the planet’s burst of speed and is likely to have delayed this global second of reckoning by about three years, Agnew said.

“We are headed toward a negative leap second,” said Dennis McCarthy, retired director of time for the U.S. Naval Observatory who wasn’t part of the study. “It’s a matter of when.”…

The full story: “A faster spinning Earth may cause timekeepers to subtract a second from world clocks,” from @AP.

For (even) more on leap seconds on their history, see “Will We Have a Negative Leap Second?“, by Demetrios Matsakis (also a retired director of time for the U.S. Naval Observatory).

See also: “Climate change is altering Earth’s rotation enough to mess with our clocks” (gift article): “in that one second, the Earth rotated about four football fields”

* Benjamin Franklin

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As we muse on measurement, we might send carefully-observed birthday greetings to Sir Harold Spencer Jones; he was born on this date in 1890. An astronomer (indeed, for 23 years the tenth Astronomer Royal), he specialized in positional astronomy, particularly the motion and orientation of the Earth in space… a focus that helped him contribute to knowledge of the Earth’s rotation and improved timekeeping– efforts that led to Spencer Jones’ election (in 1947) as the first President of the Royal Institute of Navigation (which, In 1951, named its highest award, the Gold Medal, in his honor).

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“In the long run, we are all dead”*…

I’ve spent several decades thinking (and helping others think) abut the future: e.g., doing scenario planning via GBN and Heminge & Condell, working with The Institute for the Future, thinking with the folks at the Long Now Foundation; I deeply believe in the importance of long-term thinking. It’s a critical orientation– both a perspective and a set of tools/techniques– that can help us off-set our natural tendency to act in and for the short-run and help us be better, more responsible ancestors.

But two recent articles warn that “the long term” can be turned into a justification for all sorts of grief. The first, from Phil Torres (@xriskology), argues that “so-called rationalists” have created a disturbing secular religion– longtermism– that looks like it addresses humanity’s deepest problems, but actually justifies pursuing the social preferences of elites…

Longtermism should not be confused with “long-term thinking.” It goes way beyond the observation that our society is dangerously myopic, and that we should care about future generations no less than present ones. At the heart of this worldview, as delineated by [Oxford philosopher Nick] Bostrom, is the idea that what matters most is for “Earth-originating intelligent life” to fulfill its potential in the cosmos. What exactly is “our potential”? As I have noted elsewhere, it involves subjugating nature, maximizing economic productivity, replacing humanity with a superior “posthuman” species, colonizing the universe, and ultimately creating an unfathomably huge population of conscious beings living what Bostrom describes as “rich and happy lives” inside high-resolution computer simulations.

This is what “our potential” consists of, and it constitutes the ultimate aim toward which humanity as a whole, and each of us as individuals, are morally obligated to strive. An existential risk, then, is any event that would destroy this “vast and glorious” potential, as Toby Ord, a philosopher at the Future of Humanity Institute, writes in his 2020 book The Precipice, which draws heavily from earlier work in outlining the longtermist paradigm. (Note that Noam Chomsky just published a book also titled The Precipice.)

The point is that when one takes the cosmic view, it becomes clear that our civilization could persist for an incredibly long time and there could come to be an unfathomably large number of people in the future. Longtermists thus reason that the far future could contain way more value than exists today, or has existed so far in human history, which stretches back some 300,000 years. So, imagine a situation in which you could either lift 1 billion present people out of extreme poverty or benefit 0.00000000001 percent of the 1023 biological humans who Bostrom calculates could exist if we were to colonize our cosmic neighborhood, the Virgo Supercluster. Which option should you pick? For longtermists, the answer is obvious: you should pick the latter. Why? Well, just crunch the numbers: 0.00000000001 percent of 1023 people is 10 billion people, which is ten times greater than 1 billion people. This means that if you want to do the most good, you should focus on these far-future people rather than on helping those in extreme poverty today.

[For more on posthumanism, see here and here]

The Dangerous Ideas of ‘Longtermism’ and ‘Existential Risk’

The second, from Paul Graham Raven (@PaulGrahamRaven) builds on Torres’ case…

Phil Torres… does a pretty good job of setting out the issues with what might be the ultimate in moral philosophies, namely a moral philosophy whose adherents have convinced themselves that it is not at all a moral philosophy, but rather the end-game of the enlightenment-modernist quest for a fully rational and quantifiable way of legitimating the actions that you and your incredibly wealthy donors were already doing, and would like to continue doing indefinitely, regardless of the consequences to other lesser persons in the present and immediate future, thankyouverymuch.

I have one bone of contention, though the fault is not that of Torres but rather the Longtermists themselves: the labelling of their teleology as “posthuman”. This is exactly wrong, as their position is in fact the absolute core of transhumanism; my guess would be that the successful toxification of that latter term (within academia, as well as without) has led them to instead identify with the somewhat more accepted and established label of posthumanism, so as to avoid critique and/or use a totally different epistemology as a way of drawing fire…

[For more on transhumanism, see here and here]

Longtermism is merely a more acceptable mask for transhumanism

Both pieces are worth reading in full…

And for more on a posthuman (if not in every case posthumanist) future: “The best books about the post-human Earth.”

* John Maynard Keynes

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As we take the long view, we might send far-sighted birthday greetings to John Flamsteed; he was born on this date in 1646. An astronomer, he compiled a 3,000-star catalogue, Catalogus Britannicus, and a star atlas called Atlas Coelestis, and made the first recorded observations of Uranus (though he mistakenly catalogued it as a star). Flamsteed led the group of scientists who convinced King Charles II to build the Greenwich Observatory, and personally laid its foundation stone. And he served as the first Astronomer Royal.

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