Wow, didn’t realise that guy would be able to explain or be interested in something like that, or is this a deep fake?  

It’s amazing how badly this is taught at universities - well the one I went to long time ago. I have to mention 3blue1brown’s YouTube series on linear algebra which is brilliant and gives the same intuition about matrices and matrix mul and a whole bunch of other things. 

 They also have a pdf https://bitkey.build/content/files/2023/11/Bitkey-Recovery-Features.pdf

See the section “break glass” and side loading where it says they are planning a way to use break glass kit plus hardware device. 

I like the convenience of this but I need to understand multisig and the options in this paper better. 

 (Was thinking about vrokijk’s question)