Communications of the ACM
Generative AI Degrades Online Communities
How large language models are influencing online communities.
From ACM Opinion
The S Needs to Engage China on Tech, Or Risk Isolating Itself
The contrast could hardly be more striking. In October, Vice President Mike Pence delivered a blistering speech accusing China of stealing prized US technology...
From ACM Opinion
Classical and Quantum Computers Are Vying for Superiority
Will 2019 be the year when quantum computers show they have the right stuff? Google says so; one of the company's labs, in Santa Barbara, California, has promised...
From ACM Opinion
Time Travel Is Possible, but Only If You Have an Object with Infinite Mass
The concept of time travel has always captured the imagination of physicists and laypersons alike. But is it really possible? Of course it is.
From ACM Opinion
Is the .S. Lagging in the Quest for Quantum Computing?
A quantum computer capable of breaking the strongest codes protecting online communications and computer data is highly unlikely to appear within the next decade...
From ACM Opinion
Mars Beckons
The science and technology behind NASA's latest space explorer to land on Mars are so awe-inducing that it's hardly surprising when scientists commenting on the...
From ACM Opinion
Inspired by Sci-Fi, an Airplane with No Moving Parts and a Blue Ionic Glow
Since their invention more than 100 years ago, airplanes have been moved through the air by the spinning surfaces of propellers or turbines.
From Communications of the ACM
A Chance Gardener
Harvesting open source products and planting the next crop.
From ACM Opinion
How Will We Outsmart A.I. Liars?
During the summer before the 2016 presidential election, John Seymour and Philip Tully, two researchers with ZeroFOX, a security company in Baltimore, unveiled...
From ACM Opinion
Video Doesn't Capture Truth
The White House has revoked the press pass of Jim Acosta, CNN's chief White House correspondent, after a testy exchange between the reporter and President Trump...
From ACM Opinion
The Case Against Quantum Computing
Quantum computing is all the rage. It seems like hardly a day goes by without some news outlet describing the extraordinary things this technology promises.
From ACM Opinion
Surveillance Kills Freedom By Killing Experimentation
In my book Data and Goliath, I write about the value of privacy. I talk about how it is essential for political liberty and justice, and for commercial fairness...
From ACM Opinion
Sci-Fi Movies Are the Secret Weapon that Could Help Silicon Valley Grow Up
If there's one line that stands the test of time in Steven Spielbergs 1993 classic "Jurassic Park," it's probably Jeff Goldblum's exclamation, "Your scientists...
From ACM Opinion
Your Smartphone Photos Are Totally Fake, and You Love It
The little camera on this phone has a superpower: It can see things our eyes cannot.
From ACM Opinion
How to Hack an Election (Without Touching the Machines)
On Monday morning, just 24 hours before polls opened in the US midterm elections, President Trump sounded an alarm with a Tweet: "Law Enforcement has been strongly...
From ACM Opinion
The Internet Is Splitting in Two Amid .S. Dispute With China
Western bigwigs were a no-show at China's biggest web conference. But in their absence, the local overseers of the nation's technology industry were only too happy...
From ACM Opinion
The House Science Committee May Soon Become... Pro-Science
For the past eight years, climate science has been under a sort of spell in the House of Representatives.
From ACM Opinion
Colonizing Mars Means Contaminating Mars, and Never Knowing for Sure If It Had Its Own Native Life
The closest place in the universe where extraterrestrial life might exist is Mars, and human beings are poised to attempt to colonize this planetary neighbor within...
From ACM Opinion
Artificial Intelligence Hits the Barrier of Meaning
You've probably heard that we're in the midst of an A.I. revolution.
From ACM Opinion
Even a Few Bots Can Shift Public Opinion in Big Ways
Nearly two-thirds of the social media bots with political activity on Twitter before the 2016 U.S. presidential election supported Donald Trump.
From ACM Opinion