a question

[swoarg]

If gravity is a function of mass, how can it exist before the big bang

hi dipayankar, well my thought is that gravity just before the big bang in a compressed state holds all the key ellements to creat a universe . compressed gravity comes to a point when all it can do is repulse its self. this force creats energy, matter , mass and then creats our laws of physics and time.

the hole universe compressed = gravity hmm or maybe antigravity

[Cubola Zaruka]

The acceleration of the expansion of the universe happens because a larger universe has higher entropy. Entropy increases constantly with time. Gravity reduces the amount by which time moves relative to time for more distant objects, and decreases the acceleration of the expansion of the universe and the rate of entropy. Gravity cannot be found independently of matter. It was more compressed at the beginning of the universe, because matter was too. Space-time is the sum of permutations of configurations of quanta, and energy is symmetry in how the quanta are arranged, with energy of lower entropy being ascociated with higher orders of symmetry, which can transform into other forms as long as topolgical features are conserved, hence the conservation of energy, electrical polarity, matter-antimatter polarity and quark 'colour'.
PS: If the reason why reading seems difficult to you is that the shapes and sounds of the words is annoying, try reading so fast that you do not have time to notice them. Books about mathematics and physics tend to be more formal in style than other books, and I prefer reading to listening.