1. Scalar level Various benchmarks (including those in the paper) show NiLang is much better than Zygote to differentiate scalar functions. And Zygote is much

1. Scalar level Various benchmarks (including those in the paper) show NiLang is much better than Zygote to differentiate scalar functions. And Zygote is much faster than TF and PyTorch. 2. Tensor level Zygote, TF and PyTorch are much better than NiLang, because NiLang's matrix multiplication is not fully optimized, it is much slower than BLAS. (One can wrap BLAS into NiLang, but that does not measure NiLang's programming language level AD performance anymore)