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You mention two industries with extremely demanding performance profiles (financial industry and robotics). I don't know if I'd trust any 5 year old platform in those contexts.

There are lots of other contexts where the performance profile outlined in this document are sufficient. If you love writing Go, then I'd suggest staying out of the financial industry and robotics.

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And video games.

And avionics/aerospace.

And self-driving cars. And medical equipment.

etc, etc. You can list lots of fields for which this is unacceptable, and they are a lot of the really interesting fields.

Not sure about self-driving cars. I work in robotics, and there are a few modules that need to hit hard real-time deadlines. You wouldn't use GC languages for those, but there are a LOT of other parts that don't, and you can get a BIG win by writing those in a more concise language.

Go was written by google for high throughput and concurrent infrastructure. The "web scale" problem is basically the polar opposite of the finance problem. That doesn't mean golang can't (eventually) be used in both, it just needs a bit of work before it gets there.

As far as gc bits, the Azul Systems pauseless gc is certainly as state of the art as it gets. Too bad it is for java

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