Alok Jha writing at the Guardian, from 2011:
Being comfortable with uncertainty, knowing the limits of what science can tell us, and understanding the worth of failure are all valuable tools that would improve people’s lives, according to some of the world’s leading thinkers.
The ideas were submitted as part of an annual exercise by the web magazine Edge, which invites scientists, philosophers and artists to opine on a major question of the moment. This year it was, “What scientific concept would improve everybody’s cognitive toolkit?”
The magazine called for “shorthand abstractions” – a way of encapsulating an idea or scientific concept into a short description that could be used as a component of bigger questions. The responses were published online today.
Many responses pointed out that the public often misunderstands the scientific process and the nature of scientific doubt. This can fuel public rows over the significance of disagreements between scientists about controversial issues such as climate change and vaccine safety.
Carlo Rovelli, a physicist at the University of Aix-Marseille, emphasised the uselessness of certainty. He said that the idea of something being “scientifically proven” was practically an oxymoron and that the very foundation of science is to keep the door open to doubt.
“A good scientist is never ‘certain’. Lack of certainty is precisely what makes conclusions more reliable than the conclusions of those who are certain: because the good scientist will be ready to shift to a different point of view if better elements of evidence, or novel arguments emerge. Therefore certainty is not only something of no use, but is in fact damaging, if we value reliability.”
The physicist Lawrence Krauss of Arizona State University agreed. “In the public parlance, uncertainty is a bad thing, implying a lack of rigour and predictability. The fact that global warming estimates are uncertain, for example, has been used by many to argue against any action at the present time,” he said.
“In fact, however, uncertainty is a central component of what makes science successful. Being able to quantify uncertainty, and incorporate it into models, is what makes science quantitative, rather than qualitative. Indeed, no number, no measurement, no observable in science is exact. Quoting numbers without attaching an uncertainty to them implies they have, in essence, no meaning.”
Read more here.
All the answers can be found here.