I'd take that bet. At scale, (and those 3 are the definition of scale) you can mitigate some of the downsides of Ruby (i.e. speed), but you can't recreate the upsides (i.e. developer satisfaction, learning curve, flexibility) elsewhere.

> Go and Typescript seem to have taken its place, which makes sense because they're both much better languages.

Again: depends on the metrics you're considering. I would certainly consider Go much better than ruby on some metrics, but most definitely not all - and importantly, if I put all of it on a scale (and this is where bias comes in), I still give the edge to Ruby over both of those.