Subgoal 2 latest sub2goals:

- backup my filecoin key

- make a system for backing up deal ids and hashes (data can be recovered from numeric deal id)

- begin uploading things that aren't backed up

- verify a valued thing can be redownloaded from fresh install, on a different system, over tor

- see if it is possible to renegotiate a deal to extend its duration.  Try to extend 2210176 to 539 days from present.