The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
Light travels so fast it can make the transatlantic journey between London and New York more than 50 times each second. With speed like that, you might wonder why there's any interest at all in finding faster-than-light communication…
On July 14, 2015 NASA's New Horizons spacecraft finally reaches Pluto. But the encounter is brief.
When some of the world's most advanced rescue robots are foiled by nothing more complex than a doorknob, you get a good sense of the challenge of making our homes and workplaces more automated.
As the digital economy has exploded, tech companies are collecting untold amounts of data on everyday Americans.
Google is in hot water in Europe, and its head of European operations is trying to cool things off.
Almost a decade ago now, McDonald's made a seemingly innocuous decision.
Good vs. bad. Right vs. wrong. Human beings begin to learn the difference before we learn to speak—and thankfully so.
Now that Congress has passed, and President Obama has signed, the U.S.A. Freedom Act, which places some limits on the domestic-surveillance powers of the National Security Agency, there's still unfinished business to deal with…
There's a side to the Internet most people have never visited.
After the Senate passed legislation aimed at reforming a program that collected data about the phone calls of millions of Americans, Senate Majority Leader Mitch McConnell (R-Ky.) quoted an Associated Press headline calling the…
Disconnect, which makes an ad-blocking app, filed an EU antitrust complaint against Google.
This is my ghost gun. To quote the rifleman's creed, there are many like it, but this one is mine.
Harald Geisler wants to make you as brilliant as Albert Einstein. Or at least let you write like him. Or at least write in his handwriting.
On July 9, 1916, The New York Times puzzled over a fashion trend: Europeans were starting to wear bracelets with clocks on them.
By and large, we watch movies to be entertained, not to be provoked into deep thought. Occasionally, a film does both.
Computing crosses cosmology and makes the case for agnosticism.
Considering the implications of digital data removal implementations.
No one expects the Spanish Acquisition.
Recently appointed U.S. CTO Megan Smith discusses her evolving governmental role.
Fernando Flores, president of Chile's National Innovation Council for Competitiveness, discusses a new common sense about innovation.
Revisiting network neutrality.
Scientists consider the limits of ethics in the realm of artificial intelligence, and how to mitigate its biases.
Morgan Ames' book highlights the missing HCI design process for the XO Laptop
Why it is good to have a systematic approach to software verification.
Northwestern University researchers have developed a decentralized algorithm that guarantees …
Researchers at Imperial College London in the U.K. have created …
Computer security experts continue to express doubts that expensive new …