How exactly can it be proven? Even if we create life from scratch and see it evolve, it won't be a definitive proof
It could be proven if there was a record found of something that predated the currently known fossilized bits from really long ago that would give a hint about how life at that stage was put together. This is highly unlikely to happen.
alt Hacker News
It could be proven if there was a record found of something that predated the currently known fossilized bits from really long ago that would give a hint about how life at that stage was put together. This is highly unlikely to happen.