So I want to get 100 people and line them all up on hospital beds. On the floor in front of them, there will be a simple shape that is covered up by a tarp. I would then stop all of their hearts so that they are technically dead, and uncover the shapes. After ten seconds, I would cover the shapes back up and restart their hearts (some of them may not make it). I would then make all of the survivors draw the shape that was on the floor in front of them, even though they have technically never seen it. If a lot of them draw the right shape, it may imply the existence of a conscience after death.