Don’t you hate it when your honest clarification question is mistaken for the start of a fallacious argument?
Estimated reading time: 6 minutes.
Almost every time in the last year I’ve talked with pro-choice students at a pro-life outreach, I’ve had an exchange that goes something like this:
Pro-Choice Student: The fetus isn’t even a person.
Tim: We agreed earlier that a newborn is a person. Do you think a fetus is a person right before birth?
Pro-Choice Student: *sigh* I know where you’re going with this, you’re going to try to trap me by asking if it’s a person right before that, or right before that.
Tim: No! I’m so glad you said that because that gives me the opportunity to clarify. The argument you’re describing is a logical fallacy, it’s one of the worst pro-life arguments I’ve ever heard, and if any pro-lifer out here makes that argument, I’ll prove them wrong on your behalf. I’m not trying to trap you, I’m just trying to figure out what your position is. What is it that makes us persons?
Unfortunately, because of how common this pro-life mistake is, the pro-choice student is expecting our conversation to go something like this:
Pro-Choice: The fetus isn’t a person.
Pro-Life: When do you think it becomes a person?
C: It isn’t a person until it can think.
L: So would you say it’s a person at birth?
C: Sure, it can think at birth.
L: Well, how about the day before it’s born?
C: I don’t know, maybe.
L: How about the day before that?
C: I think I see where this is going…
L: And how about the day before that? You just have to push back a little at a time to prove that there isn’t a difference between a newborn and a fetus. If the newborn is human, and there isn’t any big change in any day of its development, then it must have been human at the beginning.
C: Well I think there’s a big difference between the day it can think and the day before that.
L: Okay, then let’s talk about the day it can think. How about one second before that? The difference in the fetus from second to second is miniscule. So how can you say it is not human one second and human the next?
C: I don’t know how to explain it but I’m not persuaded.



