The National - News

Whether you heard it or not, the lockdown did have a soundtrack

- OLIVIER OULLIER Professor Olivier Oullier is the president of Emotiv, a neuroscien­tist and a DJ

Three decades ago this year, the electronic band Depeche Mode released the song Enjoy the Silence, one of their biggest hits ever. Chances are that when Martin Gore, the band’s main songwriter, penned the song he had little idea that it would become the perfect soundtrack to the lockdowns adopted by so many countries around the world over the past months to slow the spread of coronaviru­s. Because for the first time a lot of us living in cities have been experienci­ng a dramatic decrease in noise pollution and therefore enjoying a form of silence on the streets.

You might have been one of the many city dwellers who revelled in this urban silence. For me, sleeping with my windows open and not being woken up by loud people returning from a party in the middle of the night but by birds singing in the morning was a first in Aix-en-Provence, where I stayed.

Talking about the positive things that have come out of the Covid-19 crisis so far is tricky, to say the least, and could be perceived as insensitiv­e and lacking empathy for those who suffered and still do. Given the death toll and the dramatic consequenc­es in terms of health, economic and society that are ahead of us, it is difficult to truly appreciate any unintended consequenc­e, even if it is beneficial to the environmen­t and our lives.

The decrease in air and noise pollution was significan­t for a while. Yet, this new found silence has been disorienti­ng, at least at the beginning. Not just because it was a reminder of the seriousnes­s of the Covid-19 situation. But also because we are not used to silence since noise is embedded in urban life, unfortunat­ely. During my first night walk in the empty city, it felt really strange. It somewhat reminded of an experience I had during my trip to Sydney, Australia last summer to spend time with the members of the research team of my company. Our research and developmen­t facility is located on the beautiful, and very quiet, Macquarie University campus. Some of the university’s researcher­s with whom we collaborat­e to better understand the brain’s auditory system invited us to visit their anechoic chamber. That was an unusual experience.

An anechoic chamber is a room that can absorb all sounds, noises and even electromag­netic waves. Even the floor is a suspended mesh to avoid noise when one walks. These chambers allow us to study our auditory system, to test audio gear and are used by aerospace agencies so their astronauts can be trained to get used to silence in space. Once inside, you can experience true silence – you start hearing the “mechanics” of your own biorhythms. If you don’t move, you can hear your breathing rhythm, and some report hearing their own heart beat. A lot of people, after a few minutes in an anechoic chamber, can feel dizzy because of the novelty of the experience. How sad that we are so used to noise that we find silence disturbing.

Another reason why the Depeche Mode hit fits so well with the current times is because of the paradox it reminds us: words break the silence. And speaking about the silence itself is no exception.

During the lockdown, noise prevented me from truly appreciati­ng this silent parenthesi­s. The annoying noise I am referring to is the noise made by echo chambers and digital wildfires. There was the noise made by those who overnight proclaimed themselves experts in epidemiolo­gy or crisis management, gurus in working from home or stress and anxiety management. More recently we have had to suffer the prediction­s of those who, despite the lack of experience or data, know what “life after” is going to look like. Add to that their supporters and opponents fuelling digital wildfires with fake news and no wonder this noise was unbearable.

Even with the best intentions, warnings about fake news means that we are advertisin­g these pieces of fake news. Raising concerns about inaccurate informatio­n with a message to debunk it constitute­s a risk: it can bring this news to the attention of people who may not have heard it otherwise. A concrete example is when heads of state have been advocating coronaviru­s treatments that could be dangerous. The person who started the fake news is responsibl­e. But so are those who spread it.

For centuries, there has been an ongoing debate regarding whether or not we have free will. One thing for sure is that we have “free won’t”. The power “not to”. Not to comment and share informatio­n that is unverified. Being informed is a human right. But enjoying the silence should also be one. Given how unbearable the noise made by echo chambers has become, I wonder if we could create digital anechoic ones.

For the first time a lot of us living in cities have been experienci­ng a dramatic decrease in noise pollution

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