Study: Elite scientists can hold back science

Max Planck — the Nobel Prize–winning physicist who pioneered quantum theory — once said the following about scientific progress:

A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.

Shorter: Science is not immune to interpersonal bullshit. Scientists can be stubborn. They can use their gravitas to steamroll new ideas. Which means those new ideas often only prevail when older scientists die.

Recently, researchers at the National Bureau of Economic Research (NBER) released a working paper — titled, "Does Science Advance One Funeral at a Time?" — that puts Planck's principle to the test.

Sifting through citations in the PubMed database, they found evidence that when a prominent researcher suddenly dies in an academic subfield, a period of new ideas and innovation follow.

The NBER team identified 12,935 "elite" scientists — based on the amount of funding they receive, how many times they've published, how many patents they invented, or whether they were members of the National Academies of Sciences or the Institute of Medicine. Searching through obituaries, they found 452 of these elite researchers died before retirement. Because science leaves a dense paper trail of citations, publish dates, and author bylines, it's (relatively) easy to track changes in publishing patterns after a prominent death.

Here's the pattern: After the unexpected death of a rock-star scientist, their frequent collaborators — the junior researchers who authored papers with them — suddenly see a drop in publication. At the same time, there is a marked increase in published work by other newcomers to the field:

NBER

Unlike the collaborators, presumably, these newcomers are less beholden to the dead luminaries. They were "less likely to cite the deceased star’s work at all," the report states. And they seemed to be making novel advances in science:

The new articles represent substantial contributions, at least as measured by long-run citation impact. Together, these results paint a picture of scientific fields as scholarly guilds to which elite scientists can regulate access, providing them with outsized opportunities to shape the direction of scientific advance in that space.

All this suggest there's a "goliath's shadow" effect. People are either prevented from or afraid of challenging a leading thinker in a field. That or scientific subfields are like grown-up versions of high school cafeteria tables. New people just can't sit there until the queen bee dies.

What's interesting is that the deaths seemed to hurt the careers of the luminaries' junior collaborators, the ones who frequently co-authored papers with them but not in a senior role. "The death of an elite scientist has a negative and seemingly permanent impact on the productivity of their coauthors," the study reports. They published less, while outsiders flooded the void.

(The authors caution that gatekeeping by elite researchers isn't always a bad thing. "Gatekeeping activities could have beneficial properties when [a] field is in its inception," granting scientists more room to take risks.)

All of this is another example of how progress in science is confounded by human behavior. We see this in so many ways. Scientists lie about results. Or they discount insights derived from failures. Science is so obsessed with the rewards of solving complicated problems that it forgets about the simple ones. The field overwhelmingly is biased toward males (experiments have shown "John" gets more accolades than "Jennifer" with the identical résumé).

It's worth remembering: Science may be a noble discipline based on cold logic and rational observation; but humans are animals fueled by emotion and bias. As the NBER researchers conclude: "[T]he idiosyncratic stances of individual scientists can do much to alter, or at least delay, the course of scientific advance."

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