Lets first see what the official definition of mediumship is
Mediumship can be defined as follows: The process whereby a human instrument, known as a MEDIUM or CHANNEL, is used by one or more discarnate, spirit personalities for the purpose of:
Presenting information, verifiable or otherwise.
Causing so-called paranormal activities to occur.
Channeling forth certain types of energies.
Manifesting themselves for objective examination and/or identification.
Lets put it into simplified terms. Mediumship is a living person communicating with non-living person.
Now when I used the word impossible, I often get criticised, people will say
"How can you know it is impossible, have you tested every medium on the planet"
"You can't prove mediumship does not exist"
To answer the first statement, I don't need to test every medium on the planet, history has shown us that mediums cannot back up their claims.
And to answer the second statement, you cant prove a negative, can you prove that invisible midgets wearing pirate hats did NOT just sing a symphony on Jupiter? Of course not, but that doesn't mean it ever happened.
Science and specifically biology tells us that when we die, and our brain ceases to have activity, that's it for us, we are dead, no coming back.
As of today there is zero % proof of life after death.
Now here is my question, I know mediumship is impossible because science tells me so, but will it always be so?
Travelling to the moon in the year 1876 was impossible, travelling to the moon in 1925 was impossible.
But in 1969 it became possible after it was achieved by the late Neil Armstrong.
He did it not in a magic car, or by going through a wormhole he did it by using rocketpower.
So what does that tell us? It tells us that with technological advances, almost anything is possible eventually.
So how does this pertain to mediumship?
It is pretty clear to most intelligent people that mediumship in its current form is not only impossible but always will be impossible, but mediumship in the broader sense of the word "To communicate with the dead" may not always be impossible, how? well that's where we go back to science and the advancement of technology.
If mediumship is the ability to communicate with the dead, well what if in the future we develop a way to digitise our thought patterns, our very mind transferred to a computer, we would in a way continue to exist long after our body, our brain and our mind had long turned to dust. So to communicate with such a digitised version of someone could be considered mediumship.
What about if in the future we are able to communicate with a parallel universe, identical in every way to our own, except that life started on the other Earth say 20 years after it did on our own.
You could speak to your own dead mother years before her death in the other universe. Would that not be a form of mediumship?
There are many more ideas, all of which are rooted deep in science and technological advances, and not in spiritualism or the church.
So keep in mind when I say something is impossible, it doesn't mean it will always remain impossible, but it may mean that you need to redefine that what it is we are deeming impossible in the first place.