Sure - it needs to be somewhat difficult to turn on, and turning it on needs to very clearly include an "I accept all responsibility for this" declaration.

Most of "us" already deal with these things though - there's no "forgot password" for my ssh keys or my ssl keys or my topt seeds - there's no "forgot password: for my 1Password and Keypass safes. We occasionally get to laugh at out less diligent colleagues and peers who belatedly reveal the time they "lost" the ssl private key or the production webserver ssh key, but it's not like we see critical infrastructure falling apart regularly because of forgotten-but-unretrievable passphrases.

But I suspect you're right, there'd probably be a whole lot of "Hold my beer and watch me turn on full personal responsibility here! Oh, hang on - shit. Oooops..." if Ama-Face-Goo-Yah-stagram allowed this...

very clearly include an "I accept all responsibility for this"

It can't be a simple checkbox, or an Agree button. Make someone type, exactly:

   I accept all responsibility for this

Even then, the majority of the general public (as opposed to computer nerds) would be awfully upset at being locked out.

You're exactly right: there'd probably be a whole lot of "Hold my beer and watch me turn on full personal responsibility here! Oh, hang on - shit. Oooops..."

While ago I setup FDE on a new drive, put the passphrase in my encrypted password file, put the new copy of the password file on the encrypted drive, and then proceeded to wipe machine that had the only other copy of that password file (well at least the up-to-date version with that passphrase). A nasty surprise indeed. Thankfully I only lost a month's worth of files (mostly photos).

Heh. In the spirit of it being my turn to ' … belatedly reveal the time … " I mentioned upthread…

One time I had my carefully encrypted secrets thoughtfully spread across my laptop drive, my iPod as backup #1, and an external hard drive as backup #2. All of which I had in my backpack one night - which I proceeded to leave at a restaurant where I'd been sitting outside on the sidewalk tables, and I didn't notice until _way_ after they'd closed for the night. (I used up a _great_ deal of luck that night - we went to that restaurant enough to be "regulars", and the waitstaff found it and knew it was one of ours, and it was waiting for me when they opened the next day...)

Then again, in this case it might be salvageable by having an option of turning up with an ID in person. Could still be faked, but it would be a lot more work at least.