Obviously I believe in life after death.
If I tune in to a deceased person's energy and get detailed information about their cause of death, name of their childhood pet, where they hid their will, etc. where is that information coming from if not from them?
Telepathy with my client? Nope, because I can tell them something they didn't know.
Picking up on residual memory in the air? Probably not. But maybe. I won't rule that out.
Collective unconscious?