Zcash Backwards Compatibility with Bitcoin projects?


I recently watched the Epicenter Bitcoin Podcast interview with Zooko

Zooko mentions Zcash having backwards compatibility with Bitcoin projects, at 46:10-46:38

I’m wondering if there’s more information about this?

I’m particularly curious, if DASH coin (which I believe is based of Bitcoin) would be interoperable with this backward compatibility with Zcash that Zooko spoke about in the video above.