What if we could talk to Historical Characters?

No really, think about it. What if we could talk to dead people that have had an impact on our society today. What if we could ask them questions such as what was going through their head when they made history... did they believe that they were right? Or originally wrong?
Could they have died believing that they were wrong and in time they were proven right?

In science we discussed Galileo and how when he stated the Heliocentric theory he was deemed to be placed in Purgatory forever. So; Is Galileo still mad about being in Purgatory? Does he regret recanting his discovery of the Heliocentric theory? Or, since he's been proven right a hundred times over, does this mean that he's finally reached Heaven?

There are so many questions I'd like to ask so many historical figures.  Such as Elvis, I'd like to ask him if he knew what he was doing when he was building up to being famous.

I'd love to ask Juliette Lowe if she thought that Girl Scouts was a bright idea when in her period it wasn't right for girls to not learn about how a real lady is supposed to act.  Girls were like little mommies, they did what mommy did, watched her mother, and followed instructions. I don't know, but I would like to know.

What about Lincoln? Did he know what was going to happen and decide for fate to run it's course?

I don't know how we would talk to these people. Maybe an mystical board, maybe a mystical person, maybe thought those stones that mystics threw to as for the answer to yes/no questions.
Maybe there was people too who wanted to be a part of history but were not given the chance due to some event. Does this mean that they are also historical characters that need to be honored?

A student once mentioned that to ask someone about something (we were talking about who came up with the theories involving the universe) you had to be dead. What if we didn't have to be anymore? What if we could through a simple conversation for an angel on a break for the day.

Wouldn't you enjoy talking to someone who has passed away as well? Who would you talk to?