I read back in those June articles that they were expecting to achieve quantum supremacy during 2019, but it still sort-of caught me by surprise.  I wish they hadn't pulled down the paper from the NASA site, though.  I'd like to know more about the problem that they were working on.  [Neven's Law](https://www.quantamagazine.org/does-nevens-law-describe-quantum-computings-rise-20190618/) says that quantum computing grows at a doubly-exponential rate, far faster than Moore's Law.  If that holds, the gains will be astonishing in the relatively near future.

On a housekeeping note, one of the things I didn't really think about when I started this series is that over time I'm starting to build a nice little knowledge base here on the blockchain.  I sort of like the way that's working out.  One of these days, I'm going to have to write a script to create an index with links into all these posts based on topic.