I think the churn rate is higher with front-end stuff, but I don't think it's really due to any special property of the technology. Honestly, I suspect that the

I think the churn rate is higher with front-end stuff, but I don't think it's really due to any special property of the technology. Honestly, I suspect that the rate of change in a given ecosystem is roughly correlated with the number of programmers actively working in it. The number of front end web developers has been skyrocketing since the late 90s - a lot of people who've been in the industry for a while don't realize how many more of them there are compared to 5, 10 or 15 years ago. There's been growth elsewhere too, but just in the past few years the number of new bootcamp front-end developers I've seen seems to sort of swamp most other sectors. I suspect that since much of the innovation in that space has been driven by open source efforts, the amount of change is in part driven by the number of eyes on problems and the number of people interested in trying new things. There are a jillion new JS projects on github every month, and some of them catch on, so there are always new options.