5. Conservation of energy

How does conservation of energy have to be taken into account when trying to receive wifi power?

In terms of wireless communication, the conservation of energy principle states that the energy transmitted by the source (in this case, your Wi-Fi transmitter) is spread across a certain area (defined by the transmission range), and the energy captured by the receiver (your antenna) depends on its location within that range, its gain, and the frequency of the signal, among other factors.

When a signal is transmitted wirelessly, it radiates outwards from the source in a spherical pattern (assuming an isotropic antenna). This spreading means the energy is distributed across an ever-increasing area as the distance from the source increases. As a result, the energy available to any receiver diminishes with the square of the distance from the source, according to the inverse-square law.

From the perspective of energy conservation, it's impossible for one or more receivers to capture more energy than what was initially transmitted. Even if you had an infinite number of antennas, they couldn't capture more energy than what was transmitted in the first place.

Furthermore, a large part of the transmitted energy is lost as it propagates through space, due to factors such as absorption by objects and the atmosphere, reflection, diffraction, and scattering. All of these factors contribute to the path loss of the signal.

Thus, while you could theoretically add more antennas to try to capture more of the signal, the practical limitations due to interference between antennas, the spread of the signal, and other factors make it impractical to try to capture all the transmitted energy. Instead, efforts are usually focused on improving the efficiency and sensitivity of the receiver, and optimizing the placement and type of antennas, to capture as much of the signal as possible within the practical constraints.

I had this awesome original idea, just he stomped by the laws of physics and conservation of energy. Why does real physical world do this? Why cant I just get free energy everywhere, would be so much easier.