We are wondering what will happen to bitcoin if its all done, i mean totally mined..?perhape it just circulating wherein those mined will not be lost wherein it will keep floating in the space and still working how the way it works, especially those lost wallet and satoshi wallet that becomes so popular in the internet because of the amount of it, so perhaps for that reason bitcoin will not last. Just saying. 
We probably won't be alive to see that, mining difficulty rises as times goes by, with more and more blocks being mined. Definitely, the supply of BTC is limited and has been severely impacted, with millions of coins being lost on the blockchain forever. Thus, the available coins are way fewer than the 19 million, currently in circulation.I bet that in a few years, for that same reason, the price will skyrocket, becoming