std.simd

[F i L]

Great to hear this is coming along. Can I get a link to the 
(github?) source?

Do the simd functions have fallback functionally for unsupported 
hardware? Is that planned? Or is that something I'd be writing 
into my own Vector structures?

Also, I noticed Phobos now includes a "etc" library, do you have 
plans to eventually make a general purpose higher-level Linear 
systems library in that?