There are some benefits to digital content that might help work against the "black hole" effect:<p>1. It's much easier to create copies of digital documents. Looking at my own data that I consider important, many photos I've taken of my family exist on probably dozens of machines around the world belonging to relatives and friends. Of course this also happened in the pre-digital age, but I don't think to the same extent.<p>2. It's easier to create digital content in the first place, so there will be more of it. How many photos were snapped during the construction of, say, Taipei 101 as compared to the construction of the Empire State building? I don't know, but I'd guess orders of magnitude more. So, even if many are lost and many are of low quality, there is still likely to be some preserved historic record.