When she was working towards her Ph.D. in genetics at the University of California at Berkeley in the 1960s, my mother noticed something extraordinary: the organelles inside the cells she was studying looked surprisingly like single-celled free-living bacteria.
Was it possible, my mom asked herself, that bacterial cells somehow became integrated into other cells to form new organisms?
And could this be a driving mechanism of evolutionary change?
More established biologists laughed at her. Many of her colleagues dismissed her. A paper she wrote on the subject got rejected dozens of times. Later, Richard Dawkins, a famous British evolutionary biologist, called her “Attila the Hen.”
Throughout her career, my mother was ridiculed for being too iconoclastic, too unconventional, and too outspoken.
But science speaks for itself and my mother, Dr. Lynn Margulis, was able to prove, via electron microscopy, that, indeed, the mitochondria in our bodies (those tiny organelles within our cells that are responsible mainly for energy metabolism) could have come from a merger of very early bacterial cells becoming integrated into other cells.
Science Advances With Open Debate
Orville and Wilbur Wright were famous for disagreeing with each other as they tried to solve the thorny problem of getting a craft airborne. How to design propellers was one of the many engineering questions the two brothers had to resolve, and the more they studied the problem the more complicated it seemed, according to David McCullough, who wrote a best-selling book in 2016 about the Wright brothers.It took months of failures to find a design that worked. The problem, the Wrights figured out, was that the thrust of a standing propeller was not the same as the thrust of the same propeller in motion. They could only test the propellers if they tried them on a flying machine, McCullough explained in his book.
This was a frustrating time for the inventors, and they disagreed loudly about how to proceed, arguing day and night.
“If you don’t stop arguing, I’ll leave home,” their younger sister Katharine reportedly screamed at them one day.
But their heated arguments were a productive—even essential—part of the process of invention. Both brothers capitulated to each other, changing their minds based on their discussions, observations, and subsequent experiments. And they solved the propeller problem by positioning two propellers between the wings of their “Flyer,” just behind the pilot, with one spinning clockwise and the other counterclockwise to balance each other out.
I love this story because it shows how important differences of opinion are to the scientific process and how the best scientists and inventors are always willing—eventually—to put their egos aside and see things in a different way for the greater good of advancing knowledge.
And who knows? Without their lively debates, which helped them move their experiments forward, the Wright brothers may not have invented flight.
Whether the question is how life evolved on earth, how to get an aircraft off the ground, or what is the best way to treat an infectious disease like SARS-CoV-2, scientific knowledge advances by open debate, lively disagreement, and testing and re-testing hypotheses.
Lessons From China
You would think that every American understood that freedom of thought is the hallmark of an open society. After all, since the beginning of the COVID-19 scare, American newspapers have dedicated quite a bit of ink to criticizing the Chinese government for their extreme censorship.In China, the broadly worded crime of “picking quarrels and provoking trouble,” has been used time and again against citizens who are critical of the party line.
Speaking Out Against Censorship
“We are silencing scientists,” Dr. Martin Kulldorf said at a meeting of medical doctors and scientists in Washington, D.C. in March. “Science cannot operate that way. We won’t get progress and more knowledge that way.”A Swedish-born epidemiologist who was a professor of medicine at Harvard for almost twenty years, Kulldorf has been fearlessly speaking out against censorship and dishonesty in the medical community.
He was at the inauguration of Hillsdale’s new Academy for Science and Freedom, attended by dozens of other scientific leaders who also champion the honest exchange of scientific ideas.
“All civilized societies depend on the free exchange of ideas that are involved in scientific inquiry,” said Scott Atlas, M.D., who is also a fellow at the Academy for Science and Freedom, at the meeting in Washington, D.C.
“It’s not just that we need to allow that, we need to encourage that … without that free exchange of ideas, you do not have science,” Atlas said.
This week, when I boarded a plane in New York, there were signs on the jet bridge instructing passengers to stay six feet apart. It doesn’t take a scientist to realize that staying six feet apart while walking to the plane, only to be seated close together breathing the same recirculating air, makes no sense.
This peer-reviewed science concluded that: “Lower physical distancing requirements can be adopted in school settings … without negatively affecting student or staff safety.” So, it seems, the six foot rule may have been wrong all along?
As the French would say, n’importe de quoi.
Jennifer Margulis, Ph.D., is an award-winning science journalist and book author. She is currently writing a book about her mother’s life and legacy, to be published by Mariner Books in Fall of 2023.