it’s a trick

'...It’s tempting to dismiss Zeno’s argument as sophistry, but that reaction is based on either laziness or fear. Laziness, because thinking about the paradox gives the feeling that you’re perpetually on the verge of solving it without ever doing so—the same feeling that Achilles would have about catching the tortoise. Fear, because being outwitted by a man who died before humans conceived of the number zero delivers a significant blow to one’s self-image.'