It is not a blank check.

I want to be part of the resurgence of things that are tangible, beautiful and soulful, rather than just give in to the digital age. But when I talk to people about this they just say, 'Yeah, I know what you mean,' and stare at their mobiles.

There are signs that the age of petroleum has passed its zenith. Adjusted for inflation, a barrel of crude oil now sells for three times its long-run average. The large western oil companies, which cartellised the industry for much of the 20th century, are now selling more oil than they find, and are thus in the throes of liquidation.