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Both links reference the same source material — "Table 16: Side-by-Side Comparison of function points and lines of code metrics"

Seems like a comparison of Smalltalk using an IDE and Java using Notepad?

Not really credible is it.

There are tons of other sources saying the same thing. Static typing might be the popular fad on Hacker News but all the evidence points against it.

Please provide some sources saying something about Smalltalk's Proven Productivity.