Wolf actually started the project last October by documenting people in Amsterdam but the project petered out because it was difficult to find very young and very old subjects. Wolf says:
I found my very old ‘models’ in care homes and it was a privilege to document these — often vulnerable — people for this project. I had particular problems finding a 99 year-old. (Apparently 100-year-olds enjoy notoriety, but a 99-year-old is a rare species…) And when I finally did find one, she refused to state her age. She simply denied being 99-years old! But finally, some 4 months after I recorded my first ‘age’, I was able to capture the ‘missing link’ and conclude this project. Enjoy.