I think the biggest issues could be resolved if __array_concatenate__ were
finished. Unfortunately I don't feel like I can take that on right now.
See Ryan May's talk at scipy about using an ndarray subclass for units and
the issues he's run into:
https://www.youtube.com/watch?v=qCo9bkT9sow
On W
>From my experience with Quantity, routines that properly ducktype work
well, those that feel the need to accept list and blatantly do
`asarray` do not - even if in many cases they would have worked if
they used `asanyarray`... But there are lots of nice surprises, with,
e.g., `np.fft.fftfreq` jus
