Cosmic Yak
Philosopher
I am sure you are aware astronomers have discovered several local stars have planets. They are even aware of some planets that could possibly support life,
and that is only the stars near us. It seems likely that many stars have planets. There are a billion stars in our galaxy and billions of galaxies with billions of stars in them. It therefore seems quite probable there are countless planets with advanced life on them. There could be no planets until the death of early stars sending out heavy atoms. In fourteen billion years since the big bang there could be planets ten billion years old. They might have developed civilisations far older than ours.
In order to prove your mediums are doing anything other than playing a numbers game, they need to present some verifiable details.
Which specific stars do they claim have, or had, intelligent life?