There's a fundamental wrong assumption in that paradox, assuming that a mathematical infinity maps onto reality.
Reality seems to be discrete, i.e. if you break it down far enough you end up with the "smallest possible size" - see
Planck Length.
I would argue that the fundamentally wrong assumption is that an infinite sum of lengths must result in infinite length. If this were true, it would be impossible to have asymptotic behavior, which in reality is readily apparent in simple mathematical functions. The geometric series describes Zeno's motion paradox. In case anyone wants to argue that the sum of the series only converges to 1 and never reaches it, therefore Zeno was right, should note that even if you don't believe the series reaches 1, it does get bigger than zero - which is where Zeno thought it was stuck. It would seem obvious that if you can travel 99.999999% of the distance you can travel that last bit too