Can science 'prove' there's an afterlife? Netflix documentary says yes.
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By Stephanie Pappas published January 17, 2021
The documentary emphasizes "proof" of life after death, but it mixes the debunked, the unknown and the unprovable
https://www.livescience.com/netflix-surviving-death.html
The only proof is people who technically died, had some clear visions and woke up, as well brain activity before, during technically dead and after.
So, no, there is no valid proof, more than people believe they have seen aliens, or god with or without medication.