In Silicon Valley, the buzz is all about eternal youth. Billionaires are pouring cash into immortality tech, the science of hacking old age and even death. Peter Thiel, co-founder of PayPal, has invested millions in the Methuselah Foundation, a non-profit that aims to make “90 the new 50 by 2030”. Amazon’s Jeff Bezos is a huge investor in Unity Biotechnology, a start-up developing therapeutics to flush out senescent cells (which are deteriorating but don’t die off when they should).

In the pursuit of immortality, these West Coast wannabe Dorian Grays are trying every form of biohacking, from sleep tracking, fasting and meditation to implanting chips and hardware into the body. Both Apple and Google are showing interest in entering the sphere.