Ripples in the Fabric of Space and Time?

The code word of modern physics is:

• fabric of space and time

which is the subject of study of the Advanced LIGO project designed to

• observe gravitational waves—ripples in the fabric of space and time. 

If we dare to ask what the meaning of "fabric of space and time" may be, we get the following illuminating lesson by leading physicists:

• First of all, space-time is not a fabric. Space and time are not tangible 'things' in the same way that water and air are. It is incorrect to think of them as a 'medium' at all. 
• No physicist or astronomer versed in these issues considers space-time to be a truly physical medium, however, that is the way in which our minds prefer to conceptualize this concept, and has done so since the 19th century. 
• We really do not know what space-time is, other than two clues afforded by quantum mechanics and general relativity.
• Space-time does not claim existence in its own right, but only as a structural quality of the [gravitational] field. (Einstein)
• Space and time coordinates are just four out of many degrees of freedom we need, to specify a self-consistent theory. What we are going to have [in any future Theory of Everything] is not so much a new view of space and time, but a de-emphasis of space and time. (Steven Weinberg)
• In the theory of gravity, you can't really separate the structure of space and time from the particles which are associated with the force of gravity [ such as gravitons]. The notion of a string is inseparable from the space and time in which it moves. (Michael Greene)

The punch line of this educational experience is presented in this way: 

• So, the question about what happens to space-time when a particle moves through it at near the speed of light is answered by saying that this is the wrong question to ask. Just because the brain can construct a question doesn't mean that the question has a physical answer!

We understand that LIGO in its search for "ripples in the fabric of space and time" is studying "the wrong question" and thus can be viewed as a study into the ""fabric of fantasy" which has become such a fundamental part of modern physics demanding full devotion by the sharpest brains of modern physicists (see also here ):

LIGO: Absurdity of Big Physics

The Advanced LIGO Project has now been launched as the largest single experiment ever funded by NSF at $0.365 billion:

• The LIGO scientific and engineering team at Caltech and MIT has been leading the effort over the past seven years to build Advanced LIGO, the world's most sensitive gravitational-wave detector.
• Gravitational waves were predicted by Albert Einstein in 1916 as a consequence of his general theory of relativity, and are emitted by violent events in the universe such as exploding stars and colliding black holes. 
• Experimental attempts to find gravitational waves have been on going for over 50 years, and they haven't yet been found. They're both very rare and possess signal amplitudes that are exquisitely tiny.
• Although earlier LIGO runs revealed no detections, Advanced LIGO, also funded by the NSF, increases the sensitivity of the observatories by a factor of 10, resulting in a thousandfold increase in observable candidate objects. 
• The original configuration of LIGO was sensitive enough to detect a change in the lengths of the 4-kilometer arms by a distance one-thousandth the diameter of a proton; this is like accurately measuring the distance from Earth to the nearest star—over four light-years—to within the width of a human hair. 
• Advanced LIGO, which will utilize the infrastructure of LIGO, is much more powerful.
• The improved instruments will be able to look at the last minutes of the life of pairs of massive black holes as they spiral closer together, coalesce into one larger black hole, and then vibrate much like two soap bubbles becoming one. 
• In addition, Advanced LIGO will be used to search for the gravitational cosmic background, allowing tests of theories about the development of the universe only $10^{-35}$ seconds after the Big Bang.

Read these numbers: The accuracy of old LIGO was  

• the diameter of a human hair over a distance of 4 light-years, 
• $10^{-35}$ seconds after Big Bang,

and yet not the slightest little gravitational wave signal was recorded from even the most violent large scale phenomena thinkable. The conclusion should be clear: There are no gravitational waves. After all, why should there be any? By Einstein's general relativity which nobody claims to grasp?

But this is not the way Big Physics works: The fact that nothing was found by the infinitely sensitive LIGO requires an even more infinitely sensitive Advanced LIGO at a cost of a half a billion to be built by eager physicists, and after Advanced LIGO has found nothing, funding for an Advanced Advanced LIGO will be requested and so on...but why are tax payers supplying this Big Money?