It has been determined by the most critical users in this thread that a Technical Analysis chart is not convincing if the lines do not trace the outline of a dinosaur.

The pioneering work that led to that conclusion was posted here a couple of months ago IIRC, perhaps by user @magicmexican.  Others have tried to follow that lead, but with not as much success.

EDIT: Oops, the inventor of Dinosaur Analysis was @spooderman it seems.