Sci-fi writer baffles abortion foes with simple question: Would you save 1,000 embryos or one child in fire?

This is an excellent test to use against pro-lifers:

https://www.rawstory.com/2017/10/sci-fi-writer-baffles-abortion-foes-with-simple-question-would-you-save-1000-embryos-or-one-child-in-fire/

I think one useful option would be to lead with the first part of the "trolley problem" (https://en.wikipedia.org/wiki/Trolley_problem) by asking:

"There is a runaway trolley barreling down the railway tracks. Ahead, on the tracks, there are five people tied up and unable to move. The trolley is headed straight for them. You are standing some distance off in the train yard, next to a lever. If you pull this lever, the trolley will switch to a different set of tracks. However, you notice that there is one person on the side track. You have two options: 1) Do nothing, and the trolley kills the five people on the main track. 2) Pull the lever, diverting the trolley onto the side track where it will kill one person. Which is the most ethical choice?"

Assuming they choose option #2, then ask them the 1000 embryos question, only phrase it as replacing the group of five people with the vat of 1000 embryos and replacing the single person with the young child. That should drive the hypocrisy point home.