The first step in refuting both the afterlife and god arguments, is the burden of proof. The burden of proof means that the one who asserts a positive statement, like "there is an afterlife," is the one who must support the statement. The asserter is "burdened" to prove the assertion.
Carl Sagan once said, "Extraordinary claims require extraordinary evidence." Well, the claim of an entire new realm; an entire new dimension; indeed, an entire other life (after-life), is certainly extraordinary. So where is the extraordinary evidence? And I'm not talking about testimony. Testimony isn't even evidence, much less extraordinary. Do you believe everyone that swears that they were abducted by aliens? Or everyone that swears they saw Elvis? I contend that the claim of a life-after-your-life-ends is more extraordinary than the claim that one was abducted by an alien in this life, or saw Elvis in this life.
No, I want something tangible. I want something that I can quantify, measure, and understand the mechanics of to some degree. We have none of this with regards to the afterlife. In fact, we have tangible, quantifiable, and measurable evidence against the afterlife, but that's another blog entry.
However, if anyone here thinks that they have evidence for the existence of an afterlife, they are more than welcome to let me know in the comments sections on this blog. And of course don't forget to pick up your million bucks from The One Million Dollar Paranormal Challenge. The organization says that proof of "The Existence of Ghosts" will get you the cash, and last time I checked, "ghosts" are people who are "alive" after "death."
The first blog entry for this blog entitled "Kill The Afterlife," appropriately, represents the first test that the "afterlife" must pass, and that test is the burden of proof. The extraordinary nature of afterlife claims only increases the "burden" that they feel, as Carl Sagan has stated. The afterlife concept does not meet that burden.