Interaction with Alpha Vantage?

On 6 November 2017 at 13:37, Duncan Murdoch wrote:
| I'm not so sure.  I haven't noticed any problems in their data (though I
| haven't done extensive testing), but in my opinion it is a bad sign if
| there's no way to contact them.

Let's call this "Duncan's Law" but let's also remember that it didn't stop
Google / Alphabet from becoming a 700 billion dollar market cap company.