That link did not work.

A quick google resulted in

Is it the same talk?

David Thornton @northdot9 https://wiki.quadratic.net

On Thu, Feb 7, 2019, 6:12 PM D. Hugh Redelmeier via talk, <talk@gtalug.org> wrote:

I think that this is pretty interesting:

<https://www.youtube.com/watch?v=o_AIw9bGogo>
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