halving will not change anything unless the price of bitcoin expected to increase
Well I agree with you man. But halving do bring 1 change, and that is the miner's profit for mining bitcoin. That is the only change it bring to bitcoin.
You know some systems, when you change one variable, the system gets out of balance. It rebalances and afterwards all
(or most) variables are seen to have changed.
Since the halving is only happening once every 4 years that gives plenty of time to stabilize the price, if the price rises as will demand to a certain degree so the deflation will only hit when the demand is unable to keep up with the price rise.
That is right. But the deflation of the bitcoin will continue all the time as there is a limited supply of the bitcoin.