Guest blog by S. A. Shelley: Earlier this year, the Colonial Pipeline, carrying gasoline and jet fuel from Houston to the southeast US was hacked.  The perpetrators got away with 75 bitcoins, at the time worth just under $5 million US.  Nobody really hurt, so no harm, right?

Guest blog by S. A. Shelley: September 2021 has been an interesting month as energy supply crunches of all forms appeared all over the world. China is suffering from rolling power outages that are affecting residents and industry and the authoritarian government there has ordered traders and industry to secure as many energy supplies as quickly as possible. In Europe prices for electrical power and natural gas are climbing to record highs and in the UK petrol stations are running out of petrol to sell to consumers. Pressure on energy prices is starting to manifest itself in the United States as well, with California already experiencing an increasing number of rolling brownouts, sorry “flex alerts“.  Traders are starting to buy options on future contracts for oil at $200 / bbl. They are not far off, with natural gas prices in Europe in terms of energy equivalent at $140 / bbl (see note 1).