Biology is an abstraction on top of chemistry (which is an abstraction on top of physics, etc.). It's all really the same thing, just a real world we're attempt

Biology is an abstraction on top of chemistry (which is an abstraction on top of physics, etc.). It's all really the same thing, just a real world we're attempting to make sense out of, but we draw our little dividing lines where it helps us make sense of things a little easier. I just mean: at some point there was a pool (or ocean, or ocean with hotspots, or a beach with chemical goo, or etc.) of stuff doing weird chemical or physical things that we would not call biology, and over a period it moved way more towards something that we _would_ call bioloy. But it was not a hard and fast cut off, where <here> is the first living thing, one cell and then it grew and replicated. It was likely a stew of goo all intermixed at various concentrations and states that what we'd call life messily transitioned out of over such a period that there _was_ really no first living thing that you could realistically point to, because life is not well defined enough for that to make sense.