It is very doubtful that any beings in the universe could develop a civilization remotely comparable with our own without the use of metals.
Do the authors of the study think this is intelligently designed? They almost say so.
The most promising candidate for a “natural engine” is proton flows across thermal vents that theoretically could generate high-energy molecules.
No, it is not a cure. Much more work remains to be done to even get close to saying it is.
Welcome to the second day of the New Year! Like tasty sliders, these short news stories should get the juices flowing for big developments in 2020.