Guest writer, Kodachromeguy, on the 35mmc blog wrote about photos his father took around 70 years ago. Still accessible today, these photos look fantastic, because they were recorded on Kodachrome slide film all those many years ago. Short of being tossed out or attacked by fungus, these slides if kept from excess humidity and light will last another 70 years.
As Kodachromeguy puts it, "Some sort of imaging device, like a camera with a macro lens, will be able to copy this data. Will our digital files or “cloud” files be accessible in seven decades? Will we look at a billion Instagram mobile phone dumps in 70 years?"
Read the full article on 35mmc, From the Archives: Kodachromes from Athens, Greece, 1951.