We had three big data pipelines written in numpy that we'd spent a lot of time optimizing. Rewriting them in Julia, we were able to get an 8x (serial -> serial)

We had three big data pipelines written in numpy that we'd spent a lot of time optimizing. Rewriting them in Julia, we were able to get an 8x (serial -> serial), 14x (parallel -> serial), and 28x (parallel -> parallel) speedups respectively – and with clearer, more concise code. The difference is huge.