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soreff comments on But Somebody Would Have Noticed - Less Wrong
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While I don't think that "someone would have noticed" is always a fallacy, I do think that we humans tend to underestimate the chance of some obvious fact going unnoticed by a large group for a prolonged period.
At a computer vision conference last year, the best paper award went to some researchers that discovered an astonishing yet simple statistic of natural images, which surprised me at first because I thought all the simple, low level, easily accessible discoveries in computer vision had long since been discovered.
A different example- one of the most successful techniques in computer vision of the past decade has been graph cuts, where you formulate an optimization problem as a max flow problem in a graph. The first paper on graph cuts was published in 1991 iirc, but it was ignored and it wasn't until 2000 that people went back to it, whereupon several of the field's key problems were immediately solved!
Agreed - consider C60. Would anyone in 1980 have believed that there was an unrecognized allotrope of carbon, stable at room temperature and pressure? To phrase it another way: The whole field of organic chemistry had been active for about a century at that point, and had not noticed another structure for their core element in all that time.
Yes, in 1966 and 1970.
I happen to work with someone who was working on his PhD thesis at MIT and found this gigantic peak in his mass spec where C-60 was, but didn't pursue it because he didn't have time.