How has photography changed in terms of subject matter over the past hundred years or so. do you think photographers are testing boundaries more, or do you think it's because society has changed its boundaries?

Photography has changed its subject matter quite a lot over the past few years. in the 1800's, it was considered normal for families to have  post mortem photos of their loved ones, and now that would be completely unacceptable. i think that photographers have always pushed boundaries and have been eager to capture everything, it is just society that changes their boundaries.

Symbolism creates a "hidden meaning" of some sort without obviously showing it kind of like the "ophelia among the flowers" a beautiful peace but it does not look like anything right? if you  discover  the hidden meaning being the chaos and conflicts within ones mind youll see the art as having more meaning than just flowers.

Well they refer to anime girls