When The Bitcoin Was introduce then a limit was fix that how many bitcoin may mine ?
Thats limit is Twenty one millions BitCoins no more can mine at any condition.
These coins mining will complete in aproximately during the 2110 to 2140. After its nobody can mine the bitcoin .
Now there's a question in your mind that how many coins have mined till now ? no need to worry its answer is that about 17 millions coins have mined till now.
Its not compulsory that you buy a fully bitcoin .
youn can buy half bitcoin
or how you want ?
Because the price of bitcoin in these days about 6 thousand dollars .
The big thing about its trade is this that nobody can trace your trade instead of these two people's whose are trading which eachother.
Its server or sites can't be hack by anyone because its all informitiona are not save at one place its save in different data base those called BlockChain.
As we have previously mentioned that to get the bitcoin we mined it.
For this reason we use powrefull computers which solve the some calculations and mined the bitcoin .