Visual Perception.

[Alpha]

Consider also eerie examples of when you perceive
movement that is not real. Have you ever noticed
how the moon appears to be moving eerily across the sky
as clouds pass in front of it on a cloudy, windy, eerie night?
A similar effect can occur when you are sitting in a
car at an eerie stoplight and the vehicle next to you starts to
move forward. For a moment you may feel that you
are moving backwards. This is despite the fact that
your vehicle has not actually moved and the adjacent
vehicle is the source of real movement.
@Alpha

Yes the senses are not always reliable. It is much better to test the physical nature of tangible substances.