  Detection of gravitational waves by LIGO-Virgo observatories disclosed the
agent of gravity (gravitons) and together with information paradox of black
hole event horizon points to paradigm shift from non-quantum geometry to
quantum gravity physics. Historical, philosophical, mathematical, physical and
astronomical arguments are presented for demonstration that in the beginning of
the 21st century we are on the verge of the forthcoming change in understanding
of gravity nature, which will bring new ideas in performing gravitational
experiments and interpretation of astrophysical phenomena.
