7. Agreed but I think you'll find that the ones who object to such a sensible suggestion ...
... are the poxy politicians (and their entourage of various categories of hangers-on) who
a) want the photo-ops; b) want the break away from their other duties; and c) want to get
all of the backroom, off the record, bribe-trading action kept away from any public sight.
If they were all debating on videoconference then it would be (even more) blatantly obvious
which politicians and which nations were deliberately blocking & de-railing any progress.