I'm not so sure it's that different than he described. It's certainly messier, but he didn't have access to the same volume of data we do now. On a grand, gener

I'm not so sure it's that different than he described. It's certainly messier, but he didn't have access to the same volume of data we do now. On a grand, generation scale, I think he got it exactly right. You see it in the published record if you know a field well - the slow shifts with the seminal works standing out and pushing the field along...and still taking a decade or more to be widely received. Science is slow. My area - neuroimaging - has been around for 20 years and yet we're still struggling to make sense of the data. The major changes take 5 to 10 years to sink in. Not surprisingly, that's also how it takes to train a new generation.