Then you will probably get charged with destruction of evidence, and punished accordingly. Either there is evidence that you willingly destroyed it, or there is

Then you will probably get charged with destruction of evidence, and punished accordingly. Either there is evidence that you willingly destroyed it, or there isn't and you are acquitted. That situation seems a lot less abstract and certainly less disconcerting than being jailed indefinitely for not remembering a passphrase (or claiming you can't).