Physics contradicts maths - how is this possible?

Agobot writes:maths proves that in theory moving objects should never touch each other, physics shows the opposite.

Simple example - 1 stationary object(eg. - a wall) and a fly flying toward it. Say the fly is 1 metre away from the wall. In 0.5 sec she is 0.5 metres from the wall. In 0.9 sec she is 0.9 meters from the wall, in 0.999 sec she is 1 mm from the wall, in 0.9999999999sec she is 0.000000009mm from the wall. In 0.9999999999999999999999999999 sec she'd be 0.0000000000000000000000000009mm from the wall and so on. Obviously, the distance between the fly and wall cannot and will never ever become zero. Yet practice shows that the fly lands on the wall and makes that distance zero. How is this possible?

Rrhain writes:Physics is nothing more than applied math.

Buzsaw writes:I've been reading and thinking about my message signature relative to this discussion and whether it has any application to this discussion relative to the Buzsaw hypothisis that the universe is unbounded in area/space and having no beginning and incapable of ending.

Buz writes: You've got all three items wrong relative to my positions.