Quote: (Originally Posted by
Janos)

I guess the difference between the two systems is there's a difference when (say) a cell fails and the unit tells you it has failed and forces you onto bailout, and a unit that doesn't tell you when a cell fails.
The second type relies on a bit of user smartness to work correctly.
I would definte failure as death of the user, not coming off the loop.
Well, if
that's the definition of MTBCF being used then not only do I take issue with the claims but also with the twisting around of technical terms with well-defined meanings to suit marketing purposes.
MTBCF (or MTBF) is an already-defined term, and it is often abused or represents fanciful thinking as opposed to a real threat matrix, as I've pointed out in the other thread. If the definition has now been changed so that you can actually have the unit fail and force you off it, and that's
not called a "critical failure", then we've left the realm of engineering as it comes to terminology and entered the realm of creative abuse of technical terms to suit marketing goals.