I am not sure that this section is right to post my thread .
my question is :
since it was already fixed by the bitcoin owner network that
21 millions bitcoin can exist in the whole internet But now I heard that now the mining of the bitcoin will be unlimited , I mean unlimited bitcoin will generate by the bitcoin network .
If this is real news then
the value of the bitcoin will go down speedly It is because the supply is unlimited so it is simple to say that bitcoin price will no more increase rapidly ., so
no more profit what's your thought guys 
There will indeed be a finite number of coins issued, as you have stated, but miners will still get fees from the solving of blocks, even after coins have stopped generating. At this point, the fees will probably be more profitable than mining for block rewards, given the price of bitcoin if it survives that long.
Again, this is mostly a bitcoin problem or other network based on blockchain. Due to lack of regulatory oversight, market fraud and manipulation are common.