how long does your "present" last....a second?.....an hour?....two weeks?.......Boss is simply arguing that the "present" exists only for an instant......
Not even an "instant" really. Instant implies instance, and the present moment of time is a point-- not an instance.
It is from that point in time that physics must happen for us to have perception of any kind of present reality. Because of physics we are bound as non-observant characters to a present time we cannot observe. You would have to defy physics in order to do so and you can't as a physical being. Or at least, you can't at this time... science could one day find a way to time travel, etc.
The point is, we rely on our faith in the perception we have of present reality the same faith we rely on to believe in God. There is no difference.