Over 75% of data underlying science studies lost?

Over 75% of data underlying science studies lost?  So says this recent study (whose data is likely to be lost soon!) that looked for the data behind 516 studies published between 1991 and 2011 – and found it for only 23% of them.

This is part of a larger consequence of the computer revolution: compared to documents (including science data) on paper, documents in computers are ephemeral.  They get deleted, lost, or are stored on media that nobody can read any more.  While many proposals have been made to address this, none have gained any serious acceptance...