Fortunately Term Mos can't read this:
He said "Obviously the concept of any system redundancy is completely lost on you."
but he really is an ingnorant fellow .... redundancy is a concept but reliability of a simplex system is better, obviously.
use the weight spent on a 'redundant' (the clue is in the word) system to make the single system unlikely to fail, then the 'redundant' system (that is REDUNDANT and just consuming payload) is not required - doh!
how much 'redundancy' do YOU have in your car? Is it reliable?