A computer actually "landed" on a comet not too long ago.
And FWIW "computers" were landing (and crashing) on the Moon in the 60s (Luna, Surveyor et. al)....so it goes back a long time and yet the "computers" still botch things or can't handle the unknowns/unexpected..
On Rosetta the
decision where to try and land was made by human beings before the "computer" was set in motion.... Of course as it turned out the machine ended up in a less than ideal place because the automation/equipment didn't quite work as planned, the probe bounced and there was no means of human's intervening in the process to finesse the final stopping point.......
I suppose if this thread carries on long enough I'm sure Tourist and others will be shown to be correct, but I'm guessing it will be their offspring, or their offspring's offspring posting: "told you so".