One smart guy already said more than 150 years ago something to the effect that “life” (as we know it) is the (admittedly complicated, highly organized, and sti

One smart guy already said more than 150 years ago something to the effect that “life” (as we know it) is the (admittedly complicated, highly organized, and still evolving) process and a mechanism by which protein molecules make it possible - with increasing efficiency - for themselves to ensure their persistent existence on our planet. As far as a definition goes, I find this satisfactory.