I’ve used a duress password with crypto containers since the old TrueCrypt introduced me to it a while back. Sure you can have the password and unlock the vault but it’s just text file notes in there that aren’t at all important. In reality though, no one would ever give a shit about my data enough to even ask me my password.
48 seconds at those temperatures is no joke, that is pretty amazing. I didn’t see the article elaborate on what the current limiting factors are for pushing beyond 48 seconds. Like I wonder if it’s a hard wall, a new engineering challenge, a tweak needed, etc. this is the reactor that set the last record so they are doing something really right.