Wedging a wood dovetail joint - GIF

Wedging a wood dovetail joint.

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Previously:

Abraham Lincoln dovetail mallet - video
Inverted dovetail cutter - video
Magnetic dovetail block - video
Making segmented sliding dovetails - video
Sliding dovetail plane - video
Tri-metal dovetail hatchet - video

There was quite a bit edited out where he filled the gaps (see at :15)
If the joint was to be visible, a true dovetail would have been easy.
If the joint was hidden this method would be great.