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If you're talking about survivorship bias, I can well believe it.

Ruby is still popular with startups, and there's no falloff in Rails usage, if the gem download graph is anything to go by.

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Rails download graph: https://www.ruby-toolbox.com/projects/rails

what spiked the graph in November 2012?

This is excellent, thanks for sharing. Anyone know if something similar exists for JS frameworks (React,Ember,Angular,Backbone, etc)? Would be great to see their popularity over time.

I’m guessing maybe not having a single central repository like Gems will prevent this data from being so easily accessible.

I'm not sure how they came with that projection at the end, despite the fall shown...

Assuming you're looking at the chart in the other comment, it's not a projection. The chart contains two separate graphs in overlay, and they are both of absolute numbers. Red dots are total all-time downloads, grey bars are a four-week histogram, and both show continued growth.

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