The history of the present is a matter of a lot of concern to historians and archivists. Archivists work to encourage people and institutions to save their records. In some cases, record-saving is a mandatory activity (e.g. with the US Federal Government, which has many documentation/preservation requirements). The biggest concern among historians/archivists at the moment is that a lot of forms of communication now being used are extremely platform-dependent and ephemeral. Will e-mails be preserved for future generations? What about Tweets? What about Reddit comments? Etc. In some cases (i.e. Tweets) there have been concerned efforts to archive some of this material (the Library of Congress is archiving US Tweets) but in general most historians think that a lot of this data will be lost in the near future, because the systems we use today will unlikely be around in 20-50 years, much less several centuries, and computerized data is not as long-term permanent as paper is (for all of paper's flaws, if you leave it somewhere dry and without bugs it can last for centuries; data needs to be migrated to new media/systems on a regular basis, and that only happens if people really care about it).