Key safety vs Backup : History of a bad day (key-restoration problem)

[Robert J. Hansen]

> Does anyone see a good use case (aside from the cool-trick
> factor) to using secret sharing in paperkey?

Yes.  E.g., I may wish to give shares to my best friend and my cousin.
This way, even if their homes and/or offices are broken into, or one of
them misplaces/loses their share, I don't need to worry about where that
copy is: I just have the other person burn their share and issue two
more.