Tag Archive for 'multitasking'

Wayda go, Ford! Stop driver distractions!

Driving and <anything other than driving> don’t mix well, as I recently pointed out. Unfortunately, the number of <things other than driving> that you can do in a car grows fast as new technologies turn our cars into mobile electronic appliances with ever more computing, communications and multimedia capabilities. The more screens, computers, GPS systems and cellular communications on board, the less will the driver keep his or her eyes on the road!

It is encouraging, then, to read that Ford has responded to this issue and will introduce, in selected 2011 models, features specifically intended to prevent distraction. The new MyFord Touch system has a large “Do Not Disturb” button, which will block incoming phone calls and text-message alerts while the vehicle is moving. Incoming calls, we are told, will be diverted to your cell phone’s voicemail, but you can still make voice-activated outbound calls.

Furthermore, the system will lock out – disable – some features  while the vehicle is in motion, even without driver command. These include pairing a Bluetooth phone, browsing the web, playing videos and editing photos. Anything that requires typing on the keypad is prohibited while the car is moving.

You don’t say! Drivers won’t be allowed to edit photos while driving?! How cruel!…

Keep your hands on the wheel!

The silly, if cheerful, pop song from the fifties, “Seven little girls“,  gives us the chorus:

All together now, one, two, three / Keep your mind on your driving / Keep your hands on the wheel / Keep your snoopy eyes on the road ahead / We’re having fun, sitting in the backseat / Kissing and a hugging with Fred!

A somewhat improbable notion, considering that there were seven girls (plus Fred) in the back seat; but it has an important lesson: the driver should keep his mind on the driving, his eyes on the road, and – most obvious – his hands on the wheel!

And yet this is far from obvious in today’s info-starved, comm-crazed culture. Today’s drivers may not be distracted by amorous exploits in the back seat; after all, most of us drive alone to work. But we have plenty of distraction from our mobile devices.

In the beginning this meant cellphones, and many countries hurried to legislate the mandatory use of a hands-free device to at least keep the driver’s hands on the wheel (pay heed, gentle reader; the use of a cellphone while driving is a serious risk factor for traffic accidents).

But then the problem shifted to a far more dangerous use model: typing and driving. Much of this involves Texting; Prof. Paul Atchley of the University of Kansas spoke about this in the Information Overload Awareness Day event last week and his research shows that 95% of young adults text and drive; and they often text with both hands on the device. This is scary, especially given that  young drivers already have a high accident risk. Many states have enacted laws against this too.

So now I hear of an even scarier culprit: email. I was lecturing on Info Overload when a man in the audience told us that he has a friend that “from the length of his replies I can tell how fast he’s driving”. To our amazement he added that this friend once included in a message an apology for the brevity of his reply, expressly attributing it to the fact that he’s driving.

Don’t. Do. That!

A good definition of Multitasking

I was lecturing about Information Overload and multitasking recently, and told my audience how the research data shows that trying to multitask makes you less efficient at each of the tasks you try to do in parallel. After the lecture, one attendee came up to me and gave me a lovely definition she had for Multitasking:

Multitasking is a way to screw up a number of different
things at once.

I just had to share this gem with you!


WiFi in the classroom: enabler or distraction?

My friend Prof. Sheizaf Rafaeli of Haifa U writes a fascinating column in Calcalist where he examines our new digital world (if you’re one of my readers to whom Hebrew isn’t Greek, take a look!)   His last post examines the dilemma of WiFi use in university classrooms: some universities are turning the net off, to ensure students will listen to the lectures instead of mucking around in Facebook; others prefer to keep access available, claiming freedom of speech and the fact that with cellular web access the battle is lost in any case.

Sheizaf personally advocates the second position, which his university adopts. True, he says, many students are distracted by the connection, but regressing to pre-Internet times is not the answer. Our world, our society, have changed to the point that ubiquitous connectivity is a fact of life. Today’s good students are those who learn more and better by surfing, exploring and discussing things in real time in parallel to the formal lecture they’re hearing. As he concludes: “it’s time to concede the net’s victory and to accept it”!

Thinking this over, I certainly agree that there’s no turning back, and as I’ve been saying for years, management – whether in a university or in a company – can either adopt the new technology early and be a partner in influencing its usage, or try to fight it and lose. That said, the vision of the students using the net to deepen their studies, attractive though it is, troubles me. The good students will surely do so, because there’s no stopping a smart young person on a quest for knowledge and success; but there will be those at the other end of the distribution who may not be up to such self-discipline. To the extent that WiFi can be used for either learning or distraction, might it be introducing a differentiator that will increase the gap between the best and the worst students, depending on how they use it?

Since we want to create an education system where all students are helped to achieve their best, I sense a need for some degree of guidance here. Certainly, as Sheizaf points out in his article, the traditional frontal classroom needs to be replaced with a model where students are encouraged to interact online; being proactive in driving this transition is the way to go. But after providing the connectivity (technology is always the easy part), how adept will our universities be in inventing the new behavioral model? Do they really know how to modify the old one so the surfing enhances the learning experience rather than muddling it? How do we instill the required discipline (and how much is required?), and make the students live the exuberant possibilities of a learning model we have yet to fully understand? This will require professors who can guide such interaction and encourage the critical, intelligent use of web resources by all the students. Last time I checked professors weren’t even screened for lecturing skills, much less web-use facilitation ability; so creating a cadre of such brave new teachers (and retrofitting the old ones) will take some doing and time. At least, knowing that people like Prof. Rafaeli are on it makes this difficult task seem less scary.

But after providing the connectivity (technology is always the easy part), how adept will our universities be in inventing the new behavioral model?

A fine distinction about Multitasking

A common fallacy I encounter repeatedly is that people – at any rate, the younger ones – are able to “Multitask”, that is, attend to multiple actions at once. Since the problem of interruptions in the workplace (and beyond) is a major component of Information Overload, this fallacy is supposed to be comforting. Unfortunately, it is a myth (to borrow from the succinct title of Dave Crenshaw’s book, The myth of multitasking).

Discussing the subject with a friend, she made the point that what people are really doing when they “multitask” is spend some minutes doing one thing, then spend some on another, then on a third (and, I can add from data from Prof. Gloria Mark in UC Irvine, they often don’t get back to the first task until the next day). This sounded familiar, and then it hit me: the mode we were talking about is Preemptive Multitasking, a widely used computing paradigm. This allows the computer to serve many software programs “at once” by allocating very short time slices to them in turn, without asking the interrupted program’s permission. And this may seem like multitasking, but actually it is inefficient because the processing unit has an overhead as it takes care of switching between contexts – much as humans take a 20-40% hit in cumulative time to task completion when they “multitask”.

And what we’d really like to see is a completely different paradigm: we’d love to have brains that are capable of true parallel computing, like today’s multi-core microprocessor chips and like the massively parallel supercomputers out there. Unfortunately, although the brain is massively parallel in many senses – it can process visual data in parallel, and it can keep us breathing while we play chess, for instance – it is not parallel where different cognitive tasks are concerned; it can’t play chess and compose a poem at once, It can’t write two documents at once, and it can’t make quality decisions while reacting to endless incoming email messages at the same time – not without that 20-40% switching overhead.

We are stuck with time sharing brains, not multi-core parallel processors… and we just need to accept this and optimize our behavior accordingly!