Lifeboat Foundation

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This asteroid could’ve been sent by aliens to spy on us.

Have we just been buzzed by ET?

Green Bank telescope in West Virginia will listen for radio signals from ‘Oumuamua, an object from another solar system.

Machine learning drove the breakthrough.

In a recent blog post, Paul Krugman tried to illustrate a point about the GOP tax cut plan by imagining interplanetary trade with Martians. (At least he’s now entertaining voluntary transactions, rather than an alien invasion.) Yet in his zeal to downplay the potential benefits to workers from a corporate tax cut, Krugman ends up shortchanging the versatility of markets. As a teaching exercise, I’ll walk through the full implications of Krugman’s story about Martians, to show the elegance of capitalism.

Krugman’s Martian Scenario

The context for Krugman’s fanciful thought experiment is the GOP plan to cut the corporate income tax rate from 35 to 20 percent. In order to sell this plan as pro-worker, the GOP defenders are arguing that capital is very mobile on the international market. Therefore, global investors can be picky, and must earn the same after–tax rate of return (due account being made for risk), wherever they invest. This means — so the GOP argument continues — that a large cut in the US corporate tax rate will simply invite a flood of foreign capital into the US, pushing down the pre -tax rate of return to reestablish equilibrium across all countries. Yet this process helps American workers, who are now mixing their labor with a larger capital stock. Because labor productivity is higher with more tools and equipment, wage rates end up rising. Thus, so the argument concludes, the primary beneficiaries of the GOP tax cut won’t be international capitalists, but instead will be American workers.

As America has turned away from searching for extraterrestrial intelligence, China has built the world’s largest radio dish for precisely that purpose.

Last January, the Chinese Academy of Sciences invited Liu Cixin, China’s preeminent science-fiction writer, to visit its new state-of-the-art radio dish in the country’s southwest. Almost twice as wide as the dish at America’s Arecibo Observatory, in the Puerto Rican jungle, the new Chinese dish is the largest in the world, if not the universe. Though it is sensitive enough to detect spy satellites even when they’re not broadcasting, its main uses will be scientific, including an unusual one: The dish is Earth’s first flagship observatory custom-built to listen for a message from an extraterrestrial intelligence. If such a sign comes down from the heavens during the next decade, China may well hear it first.

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Scientists suggest Enceladus’s porous core could keep its subsurface ocean liquid for billions of years.

We wouldn’t blame you for thinking that Julius Horsthuis spent weeks designing and animating his sci-fi short, Fraktaal, using 3D software. But as the artist reveals, “It so happens that I’m a lazy animator.” So he instead relied on complex mathematical fractal patterns to automatically generate the alien worlds and cities visited in his film.