What I struggle with - isn't even let's say walking around, small air movements etc. producing enough tremor to influence this? We're talking about moving the sensor/scene by one half of a pixel size which is a miniscule amount (2 micrometers or so).
Yes, hence tripod and photographing buildings, as mentioned in an ancestor comment[1]. On a windy day (enough to shake the tripod) or on shaky ground (cars, trams) I guess this might still not be enough.
