Bitcoin is possibly the most important bit of engineering since the Manhattan Project. You may not have any interest in fixing the world but some people do. B

Bitcoin is possibly the most important bit of engineering since the Manhattan Project. You may not have any interest in fixing the world but some people do. Bitcoin takes energy. You can't use that energy for two things at once. You can't mine Bitcoin and Ethereum at the same time. The market for mining one squeezes out the other. A blockchain is only as secure as the game theory backing it.