Clearly you don’t understand how science works Because no science literate person would ever make such a definitive statement about an unprovable proposition. What they would say, and is entirely accurate, is that there is no definitive proof that there is an afterlife. Your 100% “certainty” that there is doesn’t make it true. Lots of people “know” things that are delusional funny thing is most delusional people don’t even know they are delusional.