It’s an odd thought. Why would anyone make their work more difficult than it already is? Yet we know that difficulty can pay unexpected dividends.

Sometimes it’s only when a difficulty is removed that we realise what it was doing for us.

Our brains respond better to difficulty than we imagine. In schools, teachers and pupils alike often assume that if a concept has been easy to learn, then the lesson has been successful. But numerous studies have now found that when classroom material is made harder to absorb, pupils retain more of it over the long term, and understand it on a deeper level. Robert Bjork, of the University of California, coined the phrase “desirable difficulties” to describe the counter-intuitive notion that learning should be made harder by, for instance, spacing sessions further apart so that students have to make more effort to recall what they learnt last time. Psychologists at Princeton found that students remembered reading material better when it was printed in an ugly font.

Take another common obstacle: lack of money. People often assume that more money will make them happier. But economists who study the relationship between money and happiness have consistently found that, above a certain income, the two do not reliably correlate. Despite the ease with which the rich can acquire almost anything they desire, they are just as likely to be unhappy as the middle classes. In this regard at least, F. Scott Fitzgerald was wrong.

Today’s world offers more opportunity than ever to follow the advice of the Walker Brothers and make it easy on ourselves. Compared with a hundred years ago, our lives are less tightly bound by social mores and physical constraints. Technology has cut out much of life’s drudgery, and we have more freedoms than ever: we can wear what we like, sleep with whom we want (if they’ll sleep with us), and communicate with hundreds of friends at once at the click of a mouse. Obstacles are everywhere disappearing. Few of us wish to turn the clock back, but perhaps we need to remind ourselves how useful the right obstacles can be. Sometimes, the best route to fulfilment is the path of more resistance.

I’ve experienced this myself. Satisfaction is often greater when hard work is required, providing the task appears doable. Easy achievements and victories don’t bring long lasting happiness.

Unfortunately, we seem to want everything to be easy, without having to work too hard for anything. The short term mindset, the desire for instant gratification, and diminishing attention spans don’t help.