I read an article from twenty THIRTEEN saying, as of then, bitcoin had more power than the top 500 supercomputers. At that time, the difficulty was 21.3 million. Now, it is almost 11 trillion and projected to pass that number within September 2019. So, using that info, the computer says that the network uses 350,000 times as much (SHA256 brute forcing) computational power as those computers did. Is that still true and if so, what is the number of times more powerful now?