Quote from: lemplong on May 29, 2020, 12:57:35 AM

After I read from a number of trusted sources and it turns out I get information, if the total number of bitcoins in circulation is 21,000,000. but if demand continues to increase, this number will be added again.

and the My question is very simple ...

Who will increase the amount of bitcoin, if then the demand increases ??
Did they Is make this bitcoin, actually ??

It is already said above, there is only 21 million bitcoin that will be in circulation after all are mined.

Quote from: lemplong on May 29, 2020, 12:57:35 AM

Who will increase the amount of bitcoin, if then the demand increases ??

So, nobody will increase the amount of bitcoin, the amount is still increasing in circulation now because not all are mined yet. The way it is increased in circulation is already in bitcoin white paper. And after all bitcoin are mined, no increamemt again.

Quote from: lemplong on May 29, 2020, 12:57:35 AM

Did they Is make this bitcoin, actually ??

Bitcoin was created by Satoshi Nakamoto, but this question is not well asked or baseless, you know bitcoin is existing and we use it like money and still asking if bitcoin was made.