Discussion

The BF is probably the principle that makes our universe be as it is. We are not able to “see” the BF, because we are submerged in it. This case is similar to a diver who is not able to see the surrounding water or a man who is not be able to see the surrounding air. But on land, we are able to see water drops on our hand and if we abandon the earth, we are also able to see the atmosphere. It is not possible to see a medium if we do not leave it, because of the lack of contrast. But once we have abandoned our medium, we can see it because of the greater contrast with other existences. The same happens with the BF: since it is the medium in which we are all submerged, we cannot “see” it because any physical activity in our universe is due to the presence of this medium and would not take place without it. The surrounding nature would not be the same without the BF and we are not able to imagine a world without it. In order to “see” the BF field, we might increase the contrast, e.g. we might “step out” of the BF (see chapter 6. below).

Analogous happens with virtual bosons. Virtual bosons are linked together by means of strings, thus building part of a medium (field), we cannot see. But if a virtual boson abandons the medium (i.e. as free photon), we are immediately able to detect it by means of technology (radio waves) or our eyes (light) because of the contrast. In consequence, in our universe, there are at least 4 different fluid media (from more to less density): liquids, gases, the “perfect vacuum” (BF) and the “absolute void” (nothing) (see chapter 6. below).

Experimental evidence for the presence of the BF can be obtained, since the speed of light depends on the density of the BF. Since the BF is more dense near celestial bodies (gravitation), the speed of light should increase in direction to the outer space. We should be able to detect an increase with respect to a fix length (like a ruler). This increase cannot be detected directly (by means of simply emitting a photon beam and counting the time it takes to reflect) because the lower density of the outer space makes "enlarge" the space parallel to the decrease of density of the BF. But a fix object (ruler) is not affected by this phenomenon and can be used as reference. The above term "enlargement" means that the field lines of the BF become less dense, so that a photon can reach higher speeds by simply passing through the greater empty spaces between the field lines since these spaces (absolute void) do not have any resistance.
In summary, the BF would be in the end responsible for (and would definitely explain) a great lot of physical phenomena, many of them controversial, including: