Welcome to Defenders, the teaching class of Dr. William Lane Craig.

Today, the Doctrine of Man, Part 11.

For more information and resources from Dr. Craig, go to reasonable faith.org.

Good morning, and welcome to Defenders class.

As you can see, we are meeting under rather unusual circumstances. Good morning and welcome to Defender's class.

As you can see, we are meeting under rather unusual circumstances this morning.

Because of the coronavirus epidemic, we can no longer meet together as a class, and the church

where we normally film the class is also closed and so we can't even record.

But we are not going to be overcome by this virus. We're going to find a way around it.

So I am recording today in the safety of my home office and we'll be broadcasting this worldwide to our

Defender's audience that follows us every Sunday morning. Now in our most

recent lesson we discussed philosophical arguments in support of dualism

interactionism with regard to the soul.

Today I want to consider a challenge to dualism interactionism

arising from some fascinating experiments performed by a brain scientist named Benjamin Libet.

He conducted a series of experiments in which people were instructed to press a button with their finger

when he monitored their brain activity.

And what Libet discovered was that prior to a person's awareness of his decision to press the button,

a brain signal had already occurred, which later resulted in his fingers moving to press the button.

So the sequence of events goes like this.

Number one, there is a brain signal about 550 milliseconds prior to the fingers moving.

Two, there is an awareness of the decision in consciousness

...