Yeah, its not just PoW. Its also nakamoto consensus (chain with the most work wins — originally was longest chain, that got fixed), and local validation of transactions. 

rijndael

I'd say proof of work is only half of the solution. The other half is incentivizing people to become trustworthy generals, or miners doing work.

k00b

The link for this post uses a read-only front-end for Twitter, which can be easier to read for viewing a full Twitter thread.  The Tweet that kicked off the thread is:

> #Bitcoin solved the 5,000-year-old Byzantine Generals problem.
>  
> But WTF is that anyway?
> - a thread -
> 
> ![Byzantine army prepares for battle](https://i.postimg.cc/qBcHFM9z/image.png)

https://twitter.com/BoldBitcoin/status/1577709814507081731