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The Box of Oddities

Future Humans & The Amazon’s Boiling River

The Box of Oddities

John Elliott and Kat Walls

Society & Culture, True Crime, Comedy

4.83K Ratings

🗓️ 5 March 2026

⏱️ 38 minutes

🧾️ Download transcript

Summary

Episode 784: Future Humans, Urban Legends & the Amazon’s Boiling River Are UFOs actually… us? This week on The Box of Oddities, Kat and Jethro dive headfirst into one of the most unsettling and scientifically grounded UFO theories you’ve probably never seriously considered: what if “alien grays” aren’t extraterrestrials at all—but future humans traveling back in time? Drawing from the work of biological anthropologist Dr. Michael P. Masters and his “extratempestrial” hypothesis, we explore how reported alien anatomy—large craniums, smaller jaws, reduced musculature, oversized dark eyes—might align disturbingly well with projected human evolution. If technology continues to shape our bodies, if artificial environments replace natural selection, and if reproductive trends continue to decline (with documented sperm count drops of 50–60% since the 1970s), could humanity biologically transform within 50,000–100,000 years into something that looks eerily like the beings reported in UFO encounters? And if that’s the case… why would they come back? We unpack the reproductive crisis angle, the strange fixation on DNA in abduction lore, and the possibility that UFO “craft” aren’t spacecraft at all—but space-time manipulation devices. Is time travel actually the more conservative explanation compared to faster-than-light travel? What would survival look like for a technologically advanced but biologically fragile future civilization? Then, because we love tonal whiplash, we pivot to something equally bizarre but undeniably real: the legendary Boiling River of the Amazon. Deep in Peru’s rainforest flows Shanay-Timpishka, a river so hot it can nearly boil living creatures alive—reaching temperatures close to 200°F in certain stretches. Far from any volcano, this geothermal marvel has been documented by geoscientist Andrés Ruzo and remains steeped in Indigenous legend involving Yacumama, the great serpent spirit said to shape the waters. We explore the science, the myth, and why protecting “neat things” like a four-mile-long boiling river might matter more than we realize. From evolutionary biology to paranormal lore, from time machines to steaming rainforest rivers, this episode proposes one uncomfortable idea: If future humans are visiting us, they aren’t here to save us or punish us. They’re here because something survives… and something doesn’t. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Coming up on this episode of the Box of Oddities, what if the aliens watching us are us?

0:06.0

A biological anthropologist says UFO graze might not be extraterrestrials at all,

0:12.0

but future humans traveling back through time to solve a problem we're already creating.

0:17.0

And then, deep in the Peruvian Amazon, there's a river so hot, it can nearly boil you

0:23.4

alive. Next.

0:26.0

Sick of those trivia podcasts that you don't even understand how to operate and they're just

0:31.4

to have too many levers and buttons. There's got to be a better way.

0:36.8

Now there is, with Good Job Brain, an offbeat quiz show and trivia podcast that makes

0:42.8

learning new things easy and fun.

0:46.4

I just learned that artificial vanilla flavoring sometimes comes from the anal glands of a beaver,

0:51.5

and now I can never shake that mental image.

0:54.0

Thanks, Good Job Brain. Good Job Brain is available for the low glands of a beaver, and now I can never shake that mental image. Thanks, Good Job Brain.

0:55.6

Good Job Brain is available for the low price of just four easy payments of free.

1:01.9

It's a podcast.

1:04.1

Good Job Brain is part of Airwave Media and available on all podcast apps.

1:08.0

Operators are standing by.

1:10.0

Are you earning and investing in the stock market?

1:13.6

In real estate? How about in relationships? Are you earning and investing in your life?

1:19.8

I'm Doc G, semi-retired hospice physician and host of the Earn and Invest podcast where we have the 201

1:25.5

or next-level conversations about money and life.

1:29.0

Not only how you make money and grow it, but also how you use your wealth to create a better

1:33.2

and more fulfilling existence.

...

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