There's too much evidence of the dead revealing themselves to us and there are many ways they do it.
There are many researchers who have devoted their lives to prove our on-going existence after death. Apparently, the dead are just as interested in our ability to recognize them and have their own teams of scientists on the other side working to make it easier to connect.
Roberta Grimes is my guest again and has a new book called "The Fun of Staying in Touch". She's not psychic and explores the subject matter through her scientific objectivity and years of training as a lawyer.
No matter how strong the evidence, there will always be people who believe in their own skepticism and will never be open to clear, objective facts. I guess being dead will eventually open their eyes.