Elon Musk: We Must Colonize Mars for Humanity to Survive the 'Dark Ages'
In the event of World War III, the only way for humanity to survive is to colonize Mars or the moon, according to Elon Musk.
"I'm not predicting that we're about to enter the dark ages, but there's some probability that we will, particularly if there's a third world war," the SpaceX and Tesla founder said during a question and answer session at the South by Southwest (SXSW) Conference in Austin on Sunday ahead of President Donald Trump's possible nuclear talks with North Korean leader Kim Jong-un.
"We want to make sure there's enough of a seed of human civilization somewhere else to bring civilization back and, perhaps, shorten the length of the dark ages," Musk continued during his chat with Jonathan Nolan, the co-creator of HBO's Westworld.
"It's important to get a self-sustaining base ideally on Mars, because Mars is far enough away from Earth that [if there's a war on Earth] the Mars base is more likely to survive than a moon base," he said. "But I think a moon base and a Mars base that could perhaps regenerate life back here on Earth would be really important."
Musk's remarks—which you can watch below—are similar to comments made by theoretical physicist Stephen Hawking, who also thinks that humanity needs to colonize Mars, the moon or other planets in order survive threats such as climate change.
Elon Musk wants a self-sustaining base for human civilization, ideally on Mars, in case WWIII on Earth #tictocnews https://t.co/lEwBrwE0I9— QuickTake by Bloomberg (@QuickTake by Bloomberg)1520792894.0
Musk said it will not be easy for the first people living in space.
"The moon and Mars are often thought of as some escape hatch for rich people, but it won't be that at all," he said. "Really it kind of reads like Shackleton's ad for Antarctic explorers ... difficult, dangerous, good chance you'll die, excitement for those who would survive."
Once the space settlers are established, the billionaire visionary envisions a "direct democracy" for Martian colonies, "where people vote directly on issues instead of going through a representative government."
Elon Musk envisions Mars government as a "direct democracy" #tictocnews https://t.co/Xv145Adu3W— QuickTake by Bloomberg (@QuickTake by Bloomberg)1520793452.0
Musk suggested that SpaceX will be ready to fly a rocket to Mars in 2019.
"I think we'll be able to do short flights, sort of up-and-down flights, probably some time in the first half of next year," he said.
However, he admitted this interplanetary project, like many of his other grand plans, could be a little too ambitious.
"People have told me that my timelines historically have been optimistic, and so I'm trying to recalibrate to some degree here."
Elsewhere in his wide-ranging interview at SXSW, Musk spoke about the threat of climate change and why there must be a price on carbon.
"Anything that pushes carbon into the atmosphere … has to have a price," Musk said.
Musk, whose many companies build electric vehicles, batteries and solar panels, has spoken frequently about his vision of a cleaner, more sustainable future.
"In the absence of a price, we sort of pretend that digging up trillions of tons of fossil fuels and putting in the atmosphere … won't have a bad outcome," he said. "It's up to people and [their] governments to put a price on carbon."
Tesla Installing World's Largest Solar Rooftop on Nevada Gigafactory https://t.co/HG8WuegadG @solarfeeds @cleantechnica— EcoWatch (@EcoWatch)1520289309.0
The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.
"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."
The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.
They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.
They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.
But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.
"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.
What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.
It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.
To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.
First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.
Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.
University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.
"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."
Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.
"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.
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