Qubes project obviously wants to point out inconvenience of physically separate computers, but really, if you are truly serious in security, physically separate computer will always stay as a relevant option.
yes, that’s correct, thanks @turkja
i know that as an OS, maybe it is out of scope for Qubes,
to cover the security of hardware / firmware level,
but i think, we also cannot close eyes to the reality,
that the threat targeting hardware / firmware level, does exist.
sometimes i feel insulted,
because the hardware / firmware level attack,
can simply bypass several layer of OS security,
and then directly read the vault VM.
also actually, based on my experience,
maybe there is no guarantee,
that only high-profile person will be attacked, via hardware / firmware gap,
because i am also, just a random low-profile person,
not os_m_ bin l_d_n, not or p_bl_ esc_b_r, not or edward snowden,
but I’m also being targeted, for any random un-clear reason.