Hokulele
Deleterious Slab of Damnation
All claims are not equal, but I'm not going to dismiss the possibility of an afterlife because someone can't provide proof of it. We simply know too little about reality to make categorical claims about what happens after we die.
Given the lack of evidence for any sort of afterlife, I would rather put my energy into making the time I *know* I have the best it can be. Because I believe the same of other people, I try to make their time the best it can be as well (although not always successfully, sigh).
If I am wrong, I don't see the effort as futile, as I and others have gotten a little extra out of this life. If I am right, it would be a complete and utter waste to ignore what we have, yearning for something better. Put that time and energy into at least trying to improve things, rather than simply hoping it will get better!