What if(on spacetime)

What if gravity and spacetime are in reality two sides to the same coin?
Spacetime is curved. Gravity creates all the events in the
universe(actions) Without these events there would be no spacetime.
Without these events there would be no universe. Thus the universe is
finite. Beginning of spacetime was the big bang. The end of spacetime
when there is no messenger particles such as photons and neutrinos to
show any events in space happening at any time. TreBert