Hi Golf-Sierra,
And there are a couple of other ways of cross-checking the pitot based airspeed.
There may be lots of "very clever technical ways" of measuring airspeed. The aircraft has it's own natural way of flying a constant airspeed - simply don't change the power or stab trim.
I think it's a great pity that the stab trim didn't remain where it was once the system recognised spurious airspeed.
Do you think they will add another Law "Alternate with Manual Trim"?