The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
Steve Jobs often swam against the tide of prevailing opinion.
On April 5, 2011, 41-year-old John Gass received a letter from the Massachusetts Registry of Motor Vehicles.
Once upon a time, Glenn Greenwald was a lonely voice in the blogging wilderness, and Edward Snowden was an isolated functionary at the heart of the American national-security state.
Artificial intelligence has arrived.
Six months ago, Chinese Internet-search giant Baidu signaled its ambitions to innovate by opening an artificial-intelligence center in Silicon Valley, in Google's backyard.
Self-tracking using a wearable device can be fascinating. It can drive you to exercise more, make you reflect on how much (or little) you sleep, and help you detect patterns in your mood over time. But something else is happening…
In just four years of operation, Uber has ignited a new global ride-sharing industry with the promise of transforming urban transportation and helping many people get by without owning cars.
President Obama rattled the internet this week when he unloaded his opinion on net neutrality, the notion that all internet traffic should be treated equally.
To succeed at a moonshot, you need curiosity, impulse, and a problem that no one seems to be investing in.
After a journey that took more than a decade, the world is scheduled to witness a first when the European Space Agency's Rosetta mission attempts to land a small spacecraft on the surface of a comet.
I taught a class a few years ago at Columbia Business School called "What Makes a Hit a Hit—and a Flop a Flop."
For anyone who has ever said that all the STEM professions need is something to make them "cool" in order to attract more young people, look no further than the Breakthrough Prize award ceremony, which took place at NASA's Hangar…
Even if you've never heard of William Gibson, you're probably familiar with his work.
Claudia Alexander has spent the last 15 years of her life waiting for this moment: landing a spacecraft the size of a washing machine on the surface of a speeding comet.
Thanks to theoretical physicist Kip Thorne, real science is embedded in Christopher Nolan's film Interstellar, in which explorers seek a new home for humankind.
Anurag Acharya, co-creator of Google Scholar, talks about the service's history and what he sees for its future.
I'm generally upbeat on Twitter. Many of my posts are enthusiastic blurts about science or research in which I use way too many exclamation points!!
On July 23rd, 1969, Geoffrey Crowther addressed the inaugural meeting of the Open University, a British institution that had just been created to provide an alternative to traditional higher education.
In an interview, Princeton University professor Arvind Narayanan and the Center for Information Technology Policy's Solon Barocas discuss the ethical and social ramifications of online tracking.
What's the point of a computer in a hermit country sealed off from the internet?
Ebola sounds like the stuff of nightmares. Bird flu and SARS also send shivers down my spine.
New technologies are making it easier for private companies and the government to learn about everything we do—in our homes, in our cars, in stores, and within our communities.
"My own personal opinion is that time is a human construct," says Tom O'Brian.
On November 12th 2014 the European Space Agency's Rosetta mission will eject the small robotic lander Philae on a trajectory that should take it down to the surface of comet 67P/Churyumov-Gerasimenko (or 67P/C-P for short).
Oculus Rift is "fantastic" but virtual reality won't replace movies just yet, according to two legends of special effects.
The Islamic State of Iraq and the Levant (Isis) is the first terrorist group whose members have grown up on the internet.
Wouldn't the world be a happier place if 90 per cent of the people with jobs put their feet up instead and left the robots to do the work?
Jan Scheuermann is not your average experimental subject.
Considering recent privacy- and security-related events through this column.
How to encourage better user security practices and behavior
Finding errors is not the same strategy as making sure that a product works.
Should we teach two different programming languages in the first CS course? Probably not -- here's what we know.
The professor was incredulous.
There are enough seismometers around these days to detect and …
Between last year and this year, the number of students …