This hazy neologism was invented by the photographer Denis Roche:
« I'm calling “photolalie” this dumb echo, this silent murmur which appears from two photographies, which is much more than only a thematic, or graphic, face to face.»

Quite simply, the photolalia gives a representation of what the time is making to things that are photographed.  Take two photos spaced from several years and watch them.
For some of you, this will be like playing the game of the 7 errors. For others, it will be an opportunity to watch two stopped moments of a slow variation of things.

Up to you to decide…