[CarolinaGuitarman]

"The more modern version relates to generation from nonliving matter or matter that no longer exists (the second part sounds kind of like a dodge or is at least unprovable)."

Not matter that no longer exists; conditions that no longer exist. Even if organic molecules join together now, they will almost certainly become food for some microorganism that already exists. This wasn't the case 4 billion years ago.

[microgood]

Not matter that no longer exists; conditions that no longer exist.

Thanks. Wikipedia states it like this:

Such scientists pointed out that the disproof of Aristotelian abiogenesis applied only to "known existing organisms", not to unknown forms of life or proto-life which may have existed under the vastly different conditions of the early Earth.