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I don't really mind if Eta ends diverging from Haskell in the particulars but remains Haskell-like à la Purescript.

I'm curious about how the jvm will behave in regards to laziness and typeclasses (MTL-like libraries, in particular).

The benchmarks I've run are extremely promising, and Eta is sometimes competitive to GHC after warmup. GHC's aggressive optimisations with -O2 + Oracle JVM's JIT seem to be a very powerful combination. I have avoided publishing the results because I still need to spend more time looking at the numbers and understand why was so fast in certain cases (check up on any mistakes I've made). I'd rather take the time to report proper benchmarks rather than hype unverified results.

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