> Printed photos sitting in a photo book with each photo in its own plastic sleeve that is stored in a dry location away from light won't last forever, but it will probably last 70 years.
Funny you should worry about 70 years when we have ink-on-paper things that have lasted hundreds of years and are still readable. According to this list of oldest surviving documents[1], preserved copies of a newspaper from 1609 exist. Oldest known book (but not sure if paper or not) is over 900 years old.
So yeah, barring direct physical damage, 70 years is nothing.
Funny you should worry about 70 years when we have ink-on-paper things that have lasted hundreds of years and are still readable. According to this list of oldest surviving documents[1], preserved copies of a newspaper from 1609 exist. Oldest known book (but not sure if paper or not) is over 900 years old.
So yeah, barring direct physical damage, 70 years is nothing.
[1] http://listverse.com/2013/11/10/10-oldest-surviving-document...