and what will happened after halving? what it means? after halving difficulty will increase or decrease?
today, whenever a miner solved a block they will get 25 BTC as their prize
But, after the halving the btc they received will be lowered to 12.5 BTC, hence the name halving comes from

And the difficulty for bitcoin will increase overtime so i think we both know the answer to that

bitcoin halving != bitcoin value increase
in the sense that the value will not come on the same date, it could come at the end of this year for all we know
Or the price will increase few days or weeks before the halving, some people will buy as much as they could, finally we may not see <$450/500 again

And when the halving comes people will dump their bitcoin massively to get profit, and could be rendering the bitcoin price back to $400
