I have been trying to understand antennas and I've been trying to analyze how the transmitter's energy is transferred. It is clear that for current to flow there must exist a potential difference across two points. The accelerated charge (current) that is produced will then radiate EM waves. In the case of a dipole antenna as depicted here at Wikipedia there is an AC source but it is only attached to the ends of the wires with no electrical connection between them, and the animation shows the ac current when there should not be any since no potential exists.
If I continue with this logic, I become confused when I consider the scenario where there is a current carrying wire and I stood on a plastic stool and touched the wire does it mean that current will flow to me as well even though I am at the same potential as the wire?
The mechanical analogy I have in mind is that of a bowling ball that has been laid on a shelf where it rests with some potential energy, and in order to convert this energy into kinetic energy the ball would need to be dropped. This symbolizes the potential difference that the wires must have in order to allow charge to flow (ball to be dropped) and thus transmit energy.