What happens to you when you die?

[Welsh cake]

Here's the deal. I've heard a lot of atheists say that "Nothing happens to me when I die. I just end." This almost seems like a claim to knowledge. To me, to state that when one dies they blink into nothingness is almost a ... belief. Why not stay more open minded and say "I have utterly no idea..."?

Death is literally just that, the termination of the biological functions that define a living organism, namely you and me. To suggest there's an "after-death-life" for speculation's sake is simply unrealistic.

"I just end" isn't a particularly accurate statement, the law of conservation of mass is in effect, matter cannot be created/destroyed, so "ending" as it were is inaccurate. You as a 'person' would cease to be, but your remains usually become part of the biogeochemical cycle, the atoms that made you up will carry on for billions-to-trillions of years afterwards until cosmology as we know it suffers heat death and/or eventual destruction by black holes (according to entropy, part of the second law of thermodynamics), but essentially we've not a shred of evidence to suggest the phenomena that is the consciousness survives and lives on somewhere else when the brain actually dies.