1,800 karma · joined August 12, 2013
The surfaces of clay particles in these lakes have been dubbed "the primordial sandwich".
The early protocells were 'alive', they were self-replicating, but they required nutrients and metabolic processes that only existed near mineral surfaces and would starve if they drifted away. They had to evolve new enzymes to become 'free-living'.
So it looks like the LUCA was one of these early protocells with an incomplete metabolism.
Obligatory FreeFall reference http://freefall.purrsia.com/ff1500/fc01415.htm
related: Null Island at 0° / 0° https://en.wikipedia.org/wiki/Null_Island
Also Douglas Coupland's 'Microserfs', described as "Here's a guy who seems to have spent a week with engineers and effortlessly absorbed everything that is important about engineering culture, everything that matters about working at a big company, and everything that matters about working at a startup." https://www.goodreads.com/book/show/2748.Microserfs