[jefb]

Very cool graphic. However emphasizing the juxtaposition between pictures of wood joints on the internet and actual real-life wood joints with the phrase "digital" is a bit perplexing.

[e28eta]

I think “digital wood joints” emphasizes that they’re meant to be cut with a CNC, and thus aren’t the traditional wood joints that have been taught for centuries. I don’t think it has anything to do with the fact that this content is available digitally.

[michaelt]

Honestly I thought they were trying to make a cute pun by calling finger joints 'digital'

Your interpretation is more likely, though. And explains why so many of the joints are weird and look like they'd leave gaps...