No, it really doesn't; it took a few generations of stars exploding and slamming into each other to make all those heavy elements we kinda consider important.

No, it really doesn't; it took a few generations of stars exploding and slamming into each other to make all those heavy elements we kinda consider important. You might be able to move it back another 3-4 billion years, which is admittedly a good long time. But really there's nothing yet that even remotely necessitates an extra-terrestrial origin for life. The problem is that, each time there was a "winner" in the very earliest more-chemistry-than-life arms-races, it essentially obliterated all record of what the competition looked like. It's not until pretty late in the game that no one new strategy obliterated all its peers - at that point we got the biological domains (prokaryotes and eukaryotes (which subsumed other prokaryotes as mitochondria and chloroplasts)) and viruses. From then on, the arms-races have been at higher levels of abstraction and the fight over the basics of biochemistry is 'settled'.