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Re:Kotlin's hidden costs – Benchmarks by time4tea on Tuesday July 04, 2017 @05:48PM (#14698522)
Clickbait.

It's the same.

Unless you care about a particular use case, when it isn't.

Measure, profile, refactor....

Re:Kotlin's hidden costs – Benchmarks by darylteo on Wednesday July 05, 2017 @02:26AM (#14700309)
The title is a response to another blog series called "Exploring Kotlin’s hidden costs". He is benchmarking the claims in those blog posts. Title Gore, perhaps. But not clickbait in this case.
Re:Kotlin's hidden costs – Benchmarks by chairmanwow on Tuesday July 04, 2017 @08:54PM (#14699297)
I felt similarly disenthused to realize the very small number of cases where Kotlin is slower.