HBM142: The Vastness of the Universe

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Image by Jeff Emtman with source material from the 2016 frequency allotment poster and Greg Zaal’s Dikhololo Night via HDRI Haven.

1,420,405,751* hertz is a very important frequency.  It’s the frequency that hydrogen radiates at, creating radio waves that can be detected far away.  And astronomers can learn a lot about the history and shape of the universe by observing this “hydrogen line” frequency with radio telescopes

Extraterrestrial research astronomers also take a lot of interest in the hydrogen line...and it’s for the same exact reason, though the context is different.  It’s thought that if an alien species is capable of communicating with us, wouldn’t they also have figured out the importance of the hydrogen line?  And is it possible that just maybe, they’d use it (or frequencies near it) to communicate with us?  The theory being that the hydrogen line could be used as a kind of universal hailing channel for intelligent species—a representation of a shared understanding of physics. 

Talk of the hydrogen line was front and center in 1977, when an American astronomer named Jerry R Ehman found a very strong signal on the printout from a radio telescope dubbed “The Big Ear” at the Ohio State University.  The signal he found was close to the hydrogen line.  He noted the abnormality of the strong the signal by writing “Wow!” in red ink on the margins of the printout.  The so-called “Wow! Signal” has long been cited as potential evidence for alien communication. 

But Dr. Seth Shostak (senior astronomer at The SETI Institute and co-host of Big Picture Science) isn’t convinced.  His organization searches for extra terrestrial intelligence across the universe with a high degree of skepticism.  And he’s experienced a false positive or two over the years.  Seth thinks the Wow! Signal (and other related anomalous signals) are almost always tied back to human interference. 

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An excerpt from the 2016 frequency allotment poster created by the USA’s Department of Congress. Near the middle, we’ve circled the protected hydrogen line frequencies.

In 1979 (not long after the Wow! Signal), frequencies near the hydrogen line became protected when a group called the International Telecommunication Union (ITU) created a 1000+ page document that included a worldwide recommendation to keep these channels clear for astronomy and SETI purposes, citing the “special importance to mankind to determine the existence of extraterrestrial civilizations.” (see page 920 of the Finals Acts of the World Administrative Radio Conference, Geneva, 1979)  

Despite this protection, Seth Shostak says there’s still interference on the hydrogen line from human sources.  That interference draws the ire of radio astronomers everywhere. Seth says, “It’s like turning on a bright light in a movie theater—you don’t ingratiate yourself with the patrons.”

Producer: Jeff Emtman
Music: The Black Spot

*Give or take some fractional hertz.

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HBM125: Deepfaking Nixon

Graphic by Jeff Emtman.

There’s a beautifully written speech that was never delivered. Written for President Richard Nixon by Bill Safire, the speech elegizes astronauts Buzz Aldrin and Neil Armstrong of Apollo 11, who’d become stuck on the moon, and were left to die there.  In reality, Buzz and Neil made it home safely, but this contingency speech was written anyways, just in case. Sometimes it’s called The Safire Memo and is sometimes called In Event of Moon Disaster.

The latter title share its name with an installation that’s (as of publish date) on display for the first time at IDFA in the Netherlands.  This project by Francesca Panetta and Halsey Burgund explores an alternate past where Aldrin and Armstrong don’t make it home from the moon.  The film portion of the installation heavily features a reading of The Safire Memo by a computer generated version of President Nixon sitting in the Oval Office, reading from notes, making all the familiar facial expressions, sharing the same vocal tics, presidential timbre, and some of the Nixonian je ne sais quoi that makes the fake nearly believable. 

But it’s not Nixon.  And it’s not entirely accurate to say it’s an actor.  It’s a kind of mix of the two, a synthetic Nixon generated by a booming form of artificial intelligence called “deep learning” which creates mathematical models of complex systems, like speech.  Lewis Wheeler  (the actor tasked with providing the voice of Nixon) did not have to imitate Nixon’s voice, only provide a proper pacing an intonation.  From there, the artists hired several companies (including Re-Speecher and Vocal ID) trained a computer model to translate Lewis’s voice into Nixon’s.

Excerpt from the installation In Event of Moon Disaster by Francesca Panetta and Halsey Burgund. This video is a deepfake.

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In Event of Moon Disaster on display at IDFA in The Netherlands. Photo by Francesca Panetta.

This kind of deep-learned fakery (called “deepfakes”) currently usually falls somewhere in the uncanny valley—the tech is good enough to get create a strong impersonation of a voice, but one that sounds still a bit mechanical, or metallic.  This won’t be the case for long though, as more and more convincing deepfake voices emerge with each generation of new code.  

And on the visual front, current video deepfakes are often so good as often pass the gut check of credibility.  This may have been most famously demonstrated in a Buzzfeed article where comedian Jordan Peele impersonates President Obama’s voice and a video deepfake moves his face along with the spoken words.  

With the 2020 presidential elections looming, it seems almost inevitable that deepfakes will enter the media fray that’s meant to discredit political enemies, creating scandals that never happened.  And outside of politics, deepfake pornographers take up the task of swapping pornographic actresses’ faces with those of celebrities or the faces of female journalists they seek to discredit.  

On this episode of Here Be Monsters, Francesca and Halsey tell producer Jeff Emtman that deepfakes aren’t going to rupture society.  We’ve dealt with this before, whether it’s darkroom manipulations or photoshop, societies eventually learn how to detect deception. But the adjustment period can be rough, and they hope that In Event of Moon Disaster will help educate media consumers on the danger of taking media at face value, regardless of whether it’s deepfakes or just old-fashioned photo mis-captioning.

Also on this episode, Ahnjili Zhuparris explains how computers learn to speak, and we listen to some audio examples of how computer voices can fail, using examples from the paper Location-Relative Attention Mechanisms For Robust Long-Form Speech Synthesis.  Also heard: a presidential  parody deepfake from user Stable Voices on Youtube. 

Producer: Jeff Emtman
Editor: Bethany Denton
Music: The Black Spot

HBM051: Sister Bethany, Proxy for the Dead

Bethany Denton in high school.

Bethany Denton was about five years old when she learned that she was a Mormon. When she was eight, she learned that she was an eternal spirit destined for an eternal afterlife.  The idea of eternity terrified her, and made her afraid to stargaze into the boundless universe.

When she got older, Bethany was allowed to enter the Mormon temple in Billings, Montana to act as the proxy in baptisms for the dead.

The Church of Jesus Christ of Latter Day Saints was founded in 1830, and has practiced baptisms for the dead (or "baptism by proxy") since 1840. This practice intends to give dead people the opportunity to join the church in the afterlife from Spirit Prison, where all souls wind up. Mormon teenagers are eligible to serve as a proxy when they turn twelve years old.  Over the course of her adolescence, Bethany was the proxy for about 30 dead people. 

When Bethany was seventeen, the late prophet Gordon B. Hinckley tasked the youth of the LDS church to read the Book of Mormon cover to cover. Bethany took him up on his challenge, and started noticing inconsistencies that made her question (and ultimately lose) her faith. She doesn't go to church anymore and hasn't for almost ten years, but she's still a member of the church, and always will be...unless she sends a formal letter of resignation.

Today, Bethany Denton is the Managing Editor of Here Be Monsters and loves to marvel at outer space.  She co-produced this piece with Jeff Emtman, along with help from Nick White, our editor at KCRW. Track image by Kyle Keenan.

Music: The Black Spot. 

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"Mormon Baptism" by Frederick Hawkins Piercy (1830-1891), a Mormon artist.