16TB is within the capacity of individuals. Given I don’t trust even Harvard to be safe with the impending onslaught, anyone with the means of downloading a copy for themselves should do so.
I work for a Canadian university library and I assure you that data archival efforts are proceeding apace. I can't really say more without possibly endangering American colleagues.
Most p2p clients support it, you'll need to refer to their documentation to enable.
For the most part all you need to do to enable it is right click a completed download then select "super seeding" mode. It's at least that straightforward for QBT.