As I was transferring all my data to a new disk, after the great NAS disaster of 2017, I discovered I had amassed just under 200Gb of personal digital data. Most is photos and videos, as you'd expect but there's also 10Gb of music, hundreds of Word and Excel files and still a bunch of assorted downloads which I need to go through and prune. I dread to think how many 1's and 0's represent my digital life.