The last Bitcoin will be mined in the next over 100 years, we don't know what's going to happen along the way, there will be new technology coming in and old coins will introduce new technology to keep up the competition, all I know is we are not going to be here anymore when the last Bitcoin is mine and it's up to the next generation if they are going to continue with the fight, just enjoy what is happening right now and continue the fight for Bitcoin and Cryptocurrency.