[dlwh]

Thanks for the questions.

I am very unlikely to take on visualization. I don't acutely need it for what I do, and I am some-but-not-nearly-enough interested in visualization for its own sake. I started to read about the grammar of graphics stuff at one point and decided it was too far down the rabbit hole.

I have looked more into gpu stuff, and agree specifying a compute graph (and then implicitly optimizing it) is more likely to be the future. FWIW, this is basically what XLA (from TensorFlow) and whatever it was FB announced on Friday are doing.

I wrote my thoughts up recently on the Breeze mailing list here: https://groups.google.com/forum/#!topic/scala-breeze/_hEFpnI...

I'm starting to think it through but I'm not sure I have time for that either :(. A 4-month old and a startup take up a lot of time.