Joe Groff on Twitter: "@owensd @Javi Here's a more applied introduction to dependent types: http://t.co/hxF5Sxjl4K"

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David Owens II ‏@owensd 3 Sep 2015

David Owens II Retweeted Michael Tsai

Interesting, but the "compare" function has the exact same potential issue of swapping left and right.https://twitter.com/mjtsai/status/639447076577918976 …

David Owens II added,

Michael Tsai @mjtsai

Why Dependent Types Matter: http://mjtsai.com/blog/2015/09/03/why-dependent-types-matter/ … #mjtsaiblog
David Owens II ‏@owensd 3 Sep 2015

Not only that, we've gone from a single CPU instruction to a recursive, O(N) operation. I must be missing something.
1 like
Javi ‏@Javi 3 Sep 2015

@owensd I'm not an expert™, but my understanding is that the idea is for all the heavy work to happen at compile time.
David Owens II ‏@owensd 3 Sep 2015

@Javi that's not possible in any non-trivial case. The values will be determined at runtime.
1 like
Joe Groff ‏@jckarter 3 Sep 2015

@owensd @Javi Naturals are an academic example, like lists are for ADTs in traditional functional languages.
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Joe Groff