What question can you never answer yes to?

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.

Need the reasons to solve 

Perhaps the changes well be new machines that can get the job done faster and same time, there is enough space to keep on building.